Ex-MMA fighter seen in wild-eyed mug shot admits to stabbing man in Atlantic City hotel room before fleeing in victim’s clothes

A former MMA fighter admitted to stabbing another man to death in an Atlantic City hotel room two years ago before leaving the gruesome scene in the victim’s clothing.

Andrew Osborne, 35, pleaded guilty to aggravated manslaughter in connection with the Sept. 23, 2022, killing of Brian A. Wilkinson, the Atlantic County Prosecutor’s Office announced.

Osborne told authorities Thursday that he stabbed Wilkinson, 47, in the head and neck in the latter’s room at the Ocean Casino Resort.

He then left the scene wearing Wilkinson’s shoes and pants, NJ Advance Media reported, citing court documents.


Andrew Osborne's mug shot.
Andrew Osborne, 35, pleaded guilty and will be sentenced in August. Atlantic County Prosecutor’s Office

Wilkinson’s door was opened from the inside around 6:57 a.m. the day of the killing, and the deadbolt was deployed to prevent it from closing, authorities added.

Surveillance footage showed Osborne in an elevator nearby around 7:09 a.m. He was then seen exiting on Wilkinson’s floor.

The door to Wilkinson’s room closed around 7:11 a.m., and did not open again until 7:30 a.m., NJ Advance Media explained.

Osborne, of Philadelphia, was then seen returning to the elevator carrying a black plastic bag. He opened the door to his room, which was on a different floor, around 7:35 a.m.

Less than 25 minutes later, Osborne and his wife — who has not been named publicly — were seen on security cameras in the hotel parking garage.


Brian Wilkinson.
Brian Wilkinson was stabbed in the head and neck. Legacy.com

Wilkinson’s body was found later that day, around 1:30 p.m.

The couple fled back to Philadelphia, where Osborne was arrested while leaving his home three days later, NJ Advance Media said.

Osborne was a professional mixed martial arts fighter between January 2012 and October 2013, KYW Radio reported. His record was one win and two losses.

Osborne will be sentenced on Aug. 22 before Judge Bernard E. DeLury Jr., officials said.

He faces up to 25 years in state prison.

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