they're made of. >> and prosecutors say one message in particular said it all. just minutes before ross strapped cooper into his car seat for the last time, he messaged a woman on an anonymous app called "whisper." i love my son and all, but we both need escapes. >> honestly, it sent chills down our spines knowing we were in the head of a murderer. >> nonsense according to the defense. >> if he is in the throes of committing a heinous murder, is he really going to announce that by texting it through this application right in the middle of doing it? >> ross's defense team says the entire case against him was outrageous, built on evidence that was twisted by prosecutors to make him look like a killer. they say that message about escape, for instance, was about hanging out with friends, not killing his son. >> if you take that one message