New York City police detectives searched a studio apartment in Las Vegas that belonged to the suspected gunman in Monday's mass shooting at a Midtown Manhattan.

Police are retracing Tamura's movements from Nevada to New York after a Midtown Manhattan shooting that left four people dead and another wounded

The gunman who shot and killed four people at a midtown Manhattan building Monday before killing himself bought the murder weapon for $1,400 from his boss at the Las Vegas casino where he worked security, NYPD officials said Wednesday.