Yet another arrest has been made in the killing of Bronx teen Lesandro “Junior” Guzman-Feliz, according to police sources.

Frederick Then, 20, turned himself in Sunday night — making him the 14th person to be arrested, sources said.

His name had been released by cops on Sept. 12 in an attempt to locate the alleged gang member. He is accused of playing a role in Guzman-Feliz’s death on June 20, though it’s unclear how.

Police charged Then with murder, manslaughter, gang assault, conspiracy and criminal possession of a weapon. The other suspects face similar charges.