i told him i recalled the damage to mrs. kramer 's door , and the damage to her head , and that i figured a crowbar was involved , and i told him that as it happened we had a rash of break-ins at military installations all up and down the eastern seaboard that also seemed to involve crowbars , and i asked him if we could piggyback on the legwork he was undoubtedly already doing in terms of tracing the green valley weapon .