i thought bradley would have burst out laughing until he let it go on for too long..
he doesn't admit to murder i don't think, as i doubt it was him, but think it'll maybe be something to cover up like, prove it's his baby with stacey, maybe they had a one night stand once, or maybe something like, personally, job-wise or he heard/did something which he feels bad about but it's not something TOO bad,
either way, i doubt he'd admit to murder