Take a close look at Terry's police ID that Farley was holding in the bar/restaurant. It shows his serial number as 415738. However, his serial number (most notably his tie clip in Walk a Tightrope, and him identifying his ID number over the phone on Death Watch) was 84934.
This takes place in the bar where the thugs force Willie and Terry to give them their wallets. Look closely at the home address on Terry's driver's license. It reads as 1053 Woodland, but it doesn't show an apartment number. He (and Willie) live in Apt 29; an apartment or unit number would never have been omitted from a person's driver's license.
This takes place in the hotel room where the sniper was killed, just before Terry shouted out the window that the sniper was dead. When Willie was checking the dead guy's pulse, look closely--he clearly picked up his head from the floor where he was lying, even though he was already dead.