connection between the two incidents. reporter: the sheriff s department investigated for two months. coronado held its breath. then at a news conference, sheriff bill gore laid out the facts as his investigators saw them. was max s death a homicide? the answer is no. it was a tragic accident. was rebecca s death a homicide? again, the answer is no, it was a suicide. reporter: sergeant dave nemeth said the evidence told a sad tale, in which one tragedy led to another. when rebecca checked her voice mail just before 1:00 a.m., sergeant nemeth said she heard a grim message from her boyfriend, max s dad, jonah. that message that was left on her phone was to inform rebecca of maxi s grave condition and imminent death. reporter: did rebecca blame herself for the child s severe