Detective Comics, Vol. 1

The Lucky Hand Triad had found a new source of heroin, which put Batman and Checkmate agent David Said in search of the source. But after finally getting the name of that source, Batman finds him murdered... poison disguised as a heart attack. Confronting Said about the coincidental timing of this death, Batman gets a lead. Allen and Montoya continue questioning Alfred when he shows up for Sasha's trial. Allen is convinced that Bruce Wayne isn't in Santa Prisca, and that Alfred Pennyworth knows where he can be found.