There were 23 shell casings and 13 bullet fragments recovered from the lobby of 345 Park Avenue and 24 spent shell casings on the 33rd floor, police said.

Four people were shot and killed in Midtown Manhattan on Monday. The deceased included two males, one female, and one NYPD officer. One male was also shot and is still in critical condition. The shooter died of an apparent self-inflicted gunshot wound, the mayor said.