we know that every day. >> there are no visits for anna stoddart. there is only a graveyard.ories from a life cut short. >> i used to go out almost every day for the longest time and just sit out there for hours. no mother should ever have to bury a child. too young. she had too much more to do in her life. she didn't get to finish it. and that's not fair. and this was the hardest thing i've ever had to do. >>> it was like seeing red. pure red. when i took the two lives, every adrenal gland was open wide, the endorphins were flying through my body. and it was just amazing. it was like pure amphetamine. that's what it felt like, only more pure. >>> tonight on "msnbc investigates," rod ferrell talks from prison exclusively about his murders that shocked america and tells us what it was like to be part of a modern day vampire clan. >> being a vampire is not an actual existence. if you shoot me, i'll die.