side. >> before he went in he was very narcissistic and the world revolved around mike. he was involved in drugs. he was involved in alcohol. nobody would be happy with the way he behaved before he got arrested for this. it was terrible. he'll admit it, he was a terrible guy. >> martin keenan believes 24 years on death row has had a numbing effect on his brother. >> emotionally, i think, it's almost like there's a curtain there. he's kind of bland. >> you're awfully calm for someone who has spent how much time now? >> mind over matter at this point. i had to deal with it. just blot it out. both my parents died, and my sister died, unfortunately, while i was on this case. yeah. couldn't go to any of their funerals. wasn't allowed. so, yeah. struggled through that, too. tried not to grieve. pretty much succeeded in that. maybe one of these days i will. i have enough to worry about without grieving about dead people.