"Police look for link between C4 explosives in Manhattan cemetery and bizarre note found nearby" SNIPPET: "Eight blocks of the plastic, military-grade explosive, formally known as Composition 4, were found in a black plastic garbage bag just inside Marble Cemetery, on E. Second St." SNIPPET: "The explosives were buried near the back wall of the old cemetery, and Police Commissioner Ray Kelly said "you could reasonably glean from that that it was put there to threaten any structure" on the other side. The back wall of the cemetery abuts some brownstones and is about 100 feet from the notorious E...