Cosme Berrones, 21, of Williamsport, pleaded guilty Tuesday to homicide in the third degree regarding his involvement in the fatal shooting of Jamil M. Bryant outside Bryant’s home at 406 Anthony St. on May 11, 2015.

He also pleaded guilty in front of President Judge Nancy L. Butts to charges of conspiracy to commit criminal homicide, obstruction of justice and tampering with evidence.

Berrones pleaded guilty “under the terms of a plea agreement reached with the district attorney’s office,” Lycoming County District Attorney Eric R. Linhardt said Wednesday evening. “He is expected to testify at (Terrance) Perez’s trial.”

Berrones is scheduled to be sentenced Jan. 3 in front of Butts.

Terrance Perez, 22, of Williamsport, also faces charges for the fatal shooting, including criminal homicide, conspiracy to commit criminal homicide and aggravated assault.

During Perez’s preliminary trial in June 2015, Berrones was the main witness.

In Berrones’ court testimony, he said that after an all-day argument through text messages, Perez shot Bryant in the head.

City Police Agent Raymond O. Kontz III testified at the preliminary hearing that Bryant was shot 13 times.

Perez’s trial will begin Monday in front of Butts at the Lycoming County Courthouse.