Looks like Tucker's mom liked him about as much as the rest of us do. She left him $1 in an epic 'fuck you kid.' By explicitly doing this he and the others couldn't say they were forgotten or overlooked, maybe get a court to step in. How much of a prick do you have to be in order to snuff out a mother's love? Now we know!
Edit: dang, looks like they divied up her estate 'before that was found.'