By David Madden

WOODBURY, N.J (CBS) — A $4,000 dollar reward is being offered in the murder of a Cumberland County man late last month in his girlfriend’s Clayton home.

Authorities Search For Killer After Man Shot To Death In Clayton Home

READ MORE: Philadelphia Students Finding Comfort In Rec Centers Again Amid Gun Violence Epidemic

Gloucester County Prosecutor Sean Dalton hopes the offer prompts someone to come forward with information in the slaying of 33-year-old Kenneth Mosley of Fairfield Township, just outside Millville.

He was shot on March 24 while sitting in the living room of his girlfriend’s residence on Downs Street in Clayton Borough, Gloucester County. Shots rang through a sliding glass door with four others in the house. None of the others were injured.

READ MORE: 'I Thought I Was Done': Residents Of Trevose Mobile Home Park Pick Up The Pieces After EF-3 Tornado

“The individuals responsible targeted Mr. Mosley. They knew where he was staying,” Dalton told KYW Newsradio. “It was planned and as such we believe that there are individuals who have knowledge regarding how this crime occurred.”

ALSO READ: Child Sex Abuse Bill Again Advances In PA House

MORE NEWS: Pirates' Crowe, 2 Relievers 1-Hit Phillies, End 4-Game Skid

The reward will be paid upon arrest and conviction in the case. Anyone with information is urged to contact the Gloucester County Prosecutor’s Office at 856-384-5552.