>> we conducted an experiment to determine if it is possible for a person to secure their hands behind their back in the fashion we found. >> they even showed a video demonstration, and while tying ones hands in a suicide is uncommon, the medical examiner said that it is not unheard of. >> people do it, the thinking is that they bind themselves so that they won't change their mind midway through, it's unusual at first glance but it does happen. >> the location of the apparent suicide note was also uncommon. >> there was a message painted on the door leading to the room, i'm going to show you a message, we will not be revealing with what the message said. >> the investigation left some people unsatisfied. none more so than rebecca's family. >> i know in my heart she did not commit suicide. >> also unsatisfied, dina shacknai. sheriff's investigators illustrated their findings with this graphic. they said max was riding his