A fourth suspect in connection with a sexual assault outside a Queens church ten days ago turned himself in Friday, police said.
Isaiah Shorter, 20, faces charges that include sex abuse and criminal use of a firearm.
Investigators believe Shorter participated in the sexual assault of a 50-year-old woman as she left the Celestial Church of Christ on July 11.
"We put out images of the assault, and it's the shelter, someone inside the shelter who called the police alerting us to this," NYPD Chief of Detectives Robert Boyce said Monday. "So that's how we found this out. Through the group home is how we found out."
Brandon Walker, 20, Justin Williams, 17, and Julisses Ginel, 19, have already been arrested in connection with the assault and face criminal sex act and sexual abuse charges.
The district attorney said they confessed or admitted to participating in the crime.
They are due in court July 28.
Police said two men approached the woman outside the church and displayed a gun.
Authorities said they led her to another area, where two more men joined them. The men then ordered the woman to remove her clothes before they stole her money, debit card and cellphone, according to police.
Three of the four suspects then sexually assaulted the victim before fleeing the scene, police said.
Police said Shorter has 14 prior arrests, mostly for turnstile jumping.