A Fall River teenager is facing charges after his alleged accomplice was shot to death during an attempted armed robbery in Lynn Wednesday, Essex prosecutors said.

Jahleel Sanders Williams, 17, pleaded not guilty at his arraignment in Lynn District Court on Thursday to charges of felony murder and attempt to commit a crime. The charges come after Amoy Blake, an 18-year-old Lynn man, was shot to death, according to a statement from the office of Essex District Attorney Jonathan Blodgett.

Blake and Williams allegedly approached a 20-year-old Lynn man and attempted to rob him Wednesday night. Blake allegedly held a gun to the man’s head, according to Blodgett’s office.


The man then shot Blake with his own legally licensed weapon, and Williams fled, according to Blodgett’s office.

The Lynn man called for an ambulance, which took Blake to Union Hospital, where he was pronounced dead, Blodgett’s office said.

He is not being charged in the incident because it was an act of self-defense, according to Carrie Kimball Monahan, a spokeswoman for Blodgett’s office.

Williams is being charged with felony murder, which means as a participant in the alleged armed robbery, he is criminally liable for any deaths that occurred while committing that felony, said Monahan. He is being tried as an adult, she said.

State and Lynn police assigned to Blodgett’s office will continue to investigate the incident, said Monahan.

Williams is being held without bail. He is to return to court May 19 for a probable cause hearing, according to Blodgett’s office.

Jacqueline Tempera can be reached at jacqueline.tempera@globe.com. Follow her on twitter @jacktemp.