New York police have arrested a 19-year-old man in the shooting death of a 16-year-old boy last week and say they are still looking for a second suspect.

Henry Thomas was arrested on Friday and has been charged with murder in the death of Makhi Brown, WABC reported.

Brown has breaking up an argument between two groups of girls at Broome Street Academy Charter High School students when he was shot in the head, WNYW said.

The two suspects in the shooting, obviously not part of the “groups of girls,” fled on a Citi Bike, police said.

“That’s just who he is. He’s a loyal person. That’s just something that was instilled in him,” his father, Maurice Brown, told WABC.

Family members said Brown was an outstanding student who also played basketball and was hoping to play in college.

“Watching him from a baby, changing his Pampers as he grew to be a gentleman, loved school, loved sports,” his aunt, Fatima Brown said.

For the latest true crime and justice news, subscribe to the ‘Crime Stories with Nancy Grace’ podcast.

[Featured image: Makhi Brown/Facebook]