So...a convicted murderer on deathrow commits another murder in prison and suddenly his previous testimony to an unrelated case is worthless?
How does that work, Kurt Sutter?
I mean, I love this show, but the stunt twists he pulls out of his ass sometimes...in the words of every SAMCRO member ever: "Jesus Christ!"
It would have made more sense if he'd killed Tara. Then his testimony could be seen as just another attempt to hurt the club for some personal misgivings.