Jacob Siebert, a freshman at Seckman High School, may have died from pulmonary emboli - blood clots in the lungs, said Dr. Mary Case, St. Louis County medical examiner.
"The blood clots traveled from his legs," Case told Patch Friday. "Sometimes we see that in people who are much heavier or who sit for long periods of time."
She said she didn't know why the clots formed in the legs or traveled to the lungs. She added that final autopsy results won't be released until toxicology reports are complete, which could take several weeks.
Jacob, 14, was a freshman football and lacrosse player at the Imperial high school. He died unexpectedly early Wednesday morning. It was rumored that Jacob may have been injured during football practice at the school.
However, Case told the St. Louis Post-Dispatch she didn't see a connection to a football injury.
A visitation and memorial service for Jacob will be held on Monday at Windsor Baptist Church at 6701 Highway 61/67 in Imperial. The visitation will be from 3 to 6 p.m., followed by the memorial service.
A memorial fund has been set up in honor of the teen at Heartland Bank in Arnold. You can write a check out to "Seckman Lacrosse Team" and either mail it or drop it off at the bank. The address is 1920 Richardson Road.
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