‘Knew he had to kill’: 19-year-old had ‘murderous thoughts lately’ before shooting stranger in the back of the head after a night of drinking, police say

Joshua Martinez appears inset against an image of a Walgreens where a man was shot in the back of the head.

Inset: Joshua Martinez appears in court (KLAS). Background: A Walgreens where a man was shot in the back of the head in Las Vegas, Nev. (Google Maps).

A Nevada teenager has admitted to acting on a strong desire to kill a man he shot in the back of the head, Silver State police say.

Joshua Martinez, 19, stands accused of one count of open murder with a deadly weapon, according to a press release issued by the Las Vegas Metropolitan Police Department.

The defendant would allegedly tell police he “knew he had to kill” the man in question — after a recent period of homicidal ideation.

The incident occurred during the early morning hours of Feb. 17, in front of a Walgreens on North Durango Drive in the Coral Bay neighborhood of Las Vegas.