>> exactly. and the motive behind it all? the prosecution said it was simple and obvious. >> we believe the motive was to allow the mother to take the younger children out of the state and start off with a new life with her boyfriend, p.j. tucci. >> it's just so hard to understand why the sons would want to do this for their mother? >> perhaps there was some underlying agreement between the sons and the mother that we were not aware of. >> it was now time for all those defense attorneys to have their say. who >> killed craig right out? who did it? >> the defense said the walmart videos didn't reveal a murder conspiracy, the tarp, the bungee cord, the drink cleaner, all were purchased in preparation for that big move to north carolina. and that's what p.j. told us. >> we had trucks coming, and we had the foosball table, we had to deal with, i'm gonna need something to strap that, the