A Fort Wayne man was charged with murder in the Feb. 19 shooting death of Samuel Douglas Westlake at the Suburban Extended Stay Hotel just before 2 p.m.

Joshua R. Mackin, 33, of the 12000 block of North Shore Drive, was arrested at home around 7 a.m. Friday, according to an Allen County Jail spokesman. He is being held at the jail without bond.

According to court documents, Mackin believed Westlake, 37, had sex with Mackin's girlfriend, and the men got in an argument the day Westlake was killed.

A witness identified Westlake as Mackin's half-brother, according to court documents; however, a source told The Journal Gazette that they are step-brothers.

At the time of the shooting, Mackin and Westlake were sitting in vehicles side by side at the hotel. The shots that killed Westlake were fired from within a white truck where one of the witnesses was sitting in the passenger seat.

Westlake was found in a dark gray Jeep with the windows shot out, dead of multiple gunshot wounds, the Allen County Coroner ruled.

Video cameras corroborated much of what witnesses told detectives from the Fort Wayne Police Department.

Westlake had told another witness interviewed in court documents that he thought Mackin would either beat him or kill him because of his sexual encounter with Mackin's girlfriend.

Mackin was being held at the Allen County Jail without bail.

jduffy@jg.net