One of the major challenges in determining Marina Habe’s time of death was the more than 60-hour gap between her disappearance and the discovery of her body. In 1969, forensic methods were also far less precise than today, making it difficult to establish an exact timeline.

Despite these limitations, meaningful clues exist that help narrow the window. One of the most important is the presence of fresh blood noted during the autopsy. Before examining those findings, however, it’s necessary to address why many early reports claimed Marina died Monday morning.

Contemporary newspaper accounts conflicted on the timing of her death. Some stated that homicide detectives believed she was killed early Monday morning, shortly after her disappearance. Others suggested she may have been held for a period before being murdered.

The widely reported Monday-morning claim appears to stem from statements made by the Sheriff’s Office just hours after Marina’s body was found—but before an autopsy had been performed. A January 2 article stated:

“The sheriff’s office said the girl had been dead since sometime early Monday morning. An autopsy was scheduled.”

This statement was made approximately three hours after the body was discovered, at a point when investigators had no forensic basis for determining time of death.[2]

Confusion was likely compounded the following day by comments from Lieutenant Hamilton, made after the autopsy but before test results were available:

“Microscopic and toxicological tests were underway to determine more closely the time of death. Hamilton said it was determined only that Marina was killed sometime after 3 a.m. Monday. He said police had no suspects.”[3]

Marina reportedly left John Hornburg’s home around 3:15 a.m. Monday. In context, Hamilton’s statement appears to indicate only that she was killed after she went missing—not that death occurred shortly afterward. The word sometime refers to an unspecified point following a given moment, not an immediate one.

Many smaller newspapers relied on AP wire reports, which led to the widespread publication of identical text with only variations in the headlines—and, consequently, the repeated claim that Marina died Monday morning.

According to Marina’s stepbrother, the coroner later stated that she had been held for a day—a claim more consistent with the autopsy findings. To estimate time of death, investigators relied primarily on liver temperature, rigor mortis, and algor mortis. This data appears in the autopsy report, and it allows for a more accurate analysis of the timeline.

Liver Temperature: Lower Than Expected

At 7:15 p.m. on January 1, 1969, Marina Habe’s liver temperature was recorded at the coroner’s office as 58°F (14.4°C). The ambient temperature at the location where her body was found was measured at 6:00 p.m. and recorded as 71°F (21.6°C), indicating relatively mild conditions.

This means Marina’s liver temperature was approximately 13°F (7.2°C) lower than the surrounding ambient temperature—an unusual finding, even accounting for factors such as the dense brush beneath her body and the cooler ground surface.

The fact that the liver temperature was recorded at the coroner’s office more than three hours after her body was found, rather than at the crime scene, is a crucial factor in explaining this discrepancy.

This introduces a number of variables, as we do not know when her body was transported to the coroner’s office, whether it was cooled during transportation, and therefore cannot determine how long it had been there or how long the liver had a chance to cool to morgue temperatures.

The ambient temperature measurement also carries some uncertainty. It was taken more than two hours after the body was found, and in December, temperatures in Los Angeles typically decline in the late afternoon. At 3:50 p.m., when the body was discovered, conditions may have been approximately 1.8 to 5.4°F (1 to 3°C) cooler than at 6:00 p.m.

Even allowing for this margin of error, the liver temperature remains notably lower than expected. For the sake of completeness, both the liver temperature and ambient temperature will be used in estimating the body’s cooling rate.

Algor Mortis: The Cooling Body

Algor mortis—the cooling of the body after death—can be used to estimate how long Marina Habe had been deceased. Under typical conditions, a body cools at an average rate of approximately 1.5°F (0.83°C) per hour, though this rate is influenced by environmental conditions, clothing, and body mass.

Several of these factors are relevant here. Marina Habe was petite, standing 5 feet 3 inches (160 cm) tall and weighing 113 pounds (51 kg), which would generally result in faster heat loss than in a larger individual.

It’s important to note that it typically takes 18 to 20 hours for a body to cool and reach the surrounding temperature.

If the estimate is based on liver temperature—less reliable in this case due to the delay and unknown transport conditions—a drop from a normal body temperature of 98.6°F (37°C) to 58°F (14.4°C) suggests a cooling period of roughly 27 to 30 hours.

Alternatively, if we use the ambient temperature of 71°F (21.6°C) instead of the liver temperature of 58°F (14.4°C), the estimated cooling period would be approximately 18 to 19 hours.

Due to the many variables, algor mortis alone is not a highly precise method for determining the exact time of death, especially over longer periods. This is why we need to include other factors to estimate the time of death.

Livor Mortis: The Pooling of Blood

Livor mortis—the pooling of blood in the lowest parts of the body after death—was assessed on January 2, 1969, and noted to be present and fixed on Marina Habe’s back. When lividity becomes fixed, the pooled blood no longer shifts when the body is moved, a process that typically occurs within 8 to 12 hours after death.

Because livor mortis was not assessed until the day after Marina’s body was discovered, the timing cannot be pinpointed precisely. However, assuming the body was not disturbed and was not refrigerated before fixation occurred, the presence of fixed livor on her back indicates she had been lying in that position for at least 8 to 12 hours prior to the examination.

Note: The coroner could not assess livor mortis on January 1 because Marina’s body arrived at the coroner’s office fully clothed. The homicide division had requested that the body not be disturbed until the Scientific Investigation Division (S.I.D.) had completed evidence collection.

Fresh Blood: A Crucial Clue to Time of Death

Fresh, unclotted blood was found in Marina Habe’s airways and around both lungs—approximately 350 ml in total, or about a cup and a half. The coroner described it as both “fresh” and “unclotted,” a distinction that reflects two separate but related aspects of blood behavior after death. Both are important in assessing how much time may have passed since Marina died.

Unclotted blood can result from either a relatively short time since death or from biological factors that interfere with the clotting process.

Under normal circumstances, blood begins to clot shortly after death, which can help estimate the time of death. Clotted blood usually appears as a dark, jelly-like mass. However, the significant blood loss in Marina’s case complicates the use of clotting—or the absence of clotting—as a reliable indicator of time of death.

In deaths caused by severe hemorrhage, as was the case with Marina, the body’s natural clot breakdown process (fibrinolysis) can prevent blood from clotting entirely, leaving it in a liquid state. Severe blood loss can also lead to coagulopathy, a condition where the blood loses its ability to clot properly.

However, even when clotting is disrupted by fibrinolysis or coagulopathy, blood still undergoes typical postmortem changes. After 12 to 24 hours or more, it generally becomes brownish, sticky, and partially or fully hemolyzed as red blood cells break down during decomposition.

In contrast, fresh unclotted blood is bright red and thin. Blood that has remained unclotted for many hours typically becomes darker, thicker, and visibly degraded, meaning it would no longer appear fresh, even if still fluid.

Because the blood was described as both fresh and unclotted, it suggests that Marina Habe likely died within 8 to 12 hours before her body was discovered—recent enough that clotting had not occurred, and early enough that visible signs of degradation had not yet set in.

Rigor Mortis: The Stiffening of Muscles

Rigor mortis, the post-mortem stiffening of muscles, was observed to be in the 2 to 3 range (on a scale of 0-4), meaning it was either still developing or had reached its peak and was beginning to subside. Rigor typically begins within 2 to 4 hours after death, peaks around 12 hours, and starts to fade after 24 to 36 hours.

• If rigor was still developing, Marina had likely been deceased for 8 to 12 hours at the time of examination.
• If rigor had already peaked and was beginning to break down, she may have been dead for over 24 hours.

Rigor mortis was assessed after Marina Habe’s body arrived at the coroner’s office at 7:15 p.m. on the day she was found.

The autopsy report indicates a level 3+ rigor mortis in the neck and jaw, and level 2+ in the shoulders, elbows, hips, knees, and ankles.

This data, combined with the blood analysis, provides the clearest clue as to how long Marina had been deceased when her body was found.

Nysten’s law states that the muscles closest to the brain enter rigor first, and those farthest from the brain are affected last.

Rigor mortis typically begins in the smaller muscles of the face and neck—including the jaw—within 2 to 4 hours after death, then progresses to the larger muscle groups of the limbs.

It diminishes in the same way, with the smaller muscles in the face and head, relaxing first.

A level 3 suggests that rigor mortis was well-established in the neck and jaw, while a level 2 in the limbs implies it was still developing.

If rigor mortis had already peaked, we would expect the reverse: a higher level in the limbs and a lower level in the neck and jaw.

If she had been killed shortly after her abduction, her body would have been in a state of advanced decomposition or “passed” rigor (where the body becomes limp again) by the time of the autopsy.

The higher level of rigor in the neck and jaw supports the conclusion that rigor mortis was in its mid to advanced stages at the time of examination, but had not yet reached its peak. This indicates that Marina was likely killed approximately 8 to 12 hours before her body was found.

Marina Habe’s Time of Death

Combining the data from algor mortis, livor mortis, the presence of fresh blood, and rigor mortis—with rigor and blood being the strongest indicators—suggests that Marina likely died 8 to 12 hours before her body was discovered.

However, the evidence points more strongly toward the lower end of that range, as rigor had not yet peaked and the blood was described as fresh.

The medical evidence suggests that Marina Habe was likely murdered in the early hours of January 1, 1969, between 4:00 a.m. and 8:00 a.m., which is consistent with the year shown on her headstone.

Evidence indicates that more than 48 hours elapsed between Marina’s abduction and her death. She is believed to have been abducted around 3:30 a.m. on December 30, 1968, and her body was discovered at 3:50 p.m. on January 1, 1969—a span of approximately 60 hours and 20 minutes.

If we were to dismiss all other factors and rely solely on the algor mortis data involving the liver temperature (27 to 30 hours)—which was unreliable due to the time that had passed—the estimated time of death would still be nowhere near Monday morning, as some newspapers reported.

Was Marina Habe Fed, Raped, and Stabbed?

Marina Habe’s stepbrother stated that the coroner informed the family she had been held for a day, fed, raped, and stabbed—though no definitive evidence of sexual assault was found.

A detailed analysis of the autopsy report, including observations of vaginal and anal dilation, the presence of food in her stomach, and the estimated time of death, suggests that it is plausible that Marina Habe was held captive for a day, fed while in captivity, and sexually assaulted.

Further supporting the possibility of sexual assault, the coroner collected a smear from the anal region, where signs of dilation and bruising were present. While this strongly indicated that sexual assault was suspected, forensic limitations at the time prevented conclusive proof.