From what I read on that article, the defender didn't say "roids made him do it", or did I miss that?
He said that roids changed his personality, but he didn't say that that led him to try to hire a hitman.
And since he plead "not guilty" it seems to be a way of trying to make it sound like he wasn't serious, if he said something the like to anybody, aka that was the roids talking.
Cause I guess if they wanted it to use as an excuse, they'd had to go down the mental incapacity route, and not not guilty...right?