at age 20 he is 18 years her junior. >> i'm implicated as the alpha dog of the house. i was the man of the household. they're saying that i was the ringleader, saying i was the one that was over it all, i planned it. i made everybody do it. >> ackerman is currently less than 100 yards away from his former girlfriend in the men's confinement unit. he has pled not guilty to murdering 26-year-old robert brewer. brewer was living on the streets of tampa when he became friends with some of dimauro's other male roommates and was invited back to the apartment for dinner. >> i was thinking, oh, no, not another freeloader around here. >> prosecutors say ackerman grew angry because of the attention