Stl Bills, I hear ya, man, and especially in the 5th, but wow, 3 knee surgeries, that does scare me. I don't think it is too much of risk but I do think you can usually get good LB depth in the 4th or 5th round, which, even as badly as you think the bills have drafted in recent years it has been the round of success for some of their LBs.
EDIT: Just read his bio. Yeah, I'm sold let's get him and consider ourselves lucky.