NASHVILLE, Tenn. (WKRN) – Metro police are searching for a 16-year-old they say is the suspected gunman who shot four people at a downtown Nashville bus station on Monday.

Demarcus Amos is wanted on a juvenile court arrest order charging him with one count of attempted murder and three counts of aggravated assault.

Authorities said Javious Chatman, 18, had just gotten off the escalator inside the MTA Music City Central bus terminal when shots rang out. He was critically injured and listed as stable Tuesday at Vanderbilt University Medical Center.

PHOTOS: Bus terminal shooting in downtown Nashville

Three other teenagers, two 16-year-olds and a 17-year-old, were also injured but have since been treated and released from the hospital for minor injuries.

Police said their efforts to find 16-year-old Amos at his Hawk View Court home have been unsuccessful.

He was reportedly not at school, Johnson Alternative School on Second Avenue South, on Tuesday.

Anyone seeing Amos or knowing his whereabouts is asked to immediately contact the Emergency Communications Center at 615-862-8600 or Crime Stoppers at 615-742-7463.

Callers to Crime Stoppers can remain anonymous and qualify for a cash reward.

The motive for the shooting remains under investigation.