Four homeless men are dead, and prosecutors have their perp. Randy Santos, 24, was charged Sunday with four counts of murder and one of attempted murder as well as unlawful possession of marijuana, an NYPD detective tells CNN. The four men were beaten to death and one seriously injured in New York City's Chinatown on Saturday. Prosecutors say Santos saw video of the men beaten with a lead pipe and admitted it was him, per the AP. He was apparently arrested holding the pipe covered in hair and blood. Using a Spanish interpreter, Santos entered no plea in court. "The motive appears to be right now just ... random attacks," says NYPD Deputy Chief Michael Baldassano. (More murder stories.)