The papers were in complete disarray on the day, all reporting conflicting words. So im still not sure. This is what wikipedia has to say:

Three fired cartridge cases alongside three unfired cartridges were found at the scene.[64] The words “delay”, “deny”, and “depose” were written on the cases. “Depose” was inscribed on a casing from a round fired into Thompson, while “delay” was marked on an unfired cartridge ejected as the shooter appeared to be clearing a jam.[51][67] A senior New York City law enforcement official briefed on the investigation initially stated that shell casings found at the scene had the words “deny,” “defend” and “depose” written on them, but police later clarified that it was “delay” and not “defend.”[68] The three words are similar to the phrase “delay, deny, defend”, a well-known phrase in the insurance industry alluding to insurance companies’ efforts to not pay out claims.