"I don't know, guy. I haven't asked." [That wasn't to say he couldn't, but the subtle pull of his eyebrows suggested it wasn't his favorite idea.]

"When we was my warden, he always wanted to meet. It didn't take me long to realize it was because he didn't want a paper trail. We met on deck once and he told me he wanted me to trust him, so he would tell me everything. He admitted to helping Crane with the toxin, to deleting the file from Slade's room, to blackmailing Rex both for his own curiosity and to help Rex -- though he claimed he never wanted the plan to actually work out."

[Costigan shook his head. It was frustrating to know so much and have so little evidence.] "He told me about Crane being his only friend, but basically admitting to using the bastard. When I called him on lying the whole time, he told me I'd never asked."

[There was a hard bitterness to Costigan's tone that was generally reserved for talking about Sullivan.]