MSNBC Dateline December 7, 2019 08:22:00
To -- to come up with a cause of death. but in the meantime, we're -- we're thinking -- i would say thinking the worst. until we can disprove that it's not a homicide, we've got to treat it as such. >> reporter: crime scene techs worked on tom's car and took swabs for clues. while detectives set out to learn more about his movements on the day he died. linda told police the last time she saw tom was the night before, watching football. she assumed he left for the gym the following morning around 5:30, so investigators pulled security video of the parking lot to see what that could tell them. i...