A memorial service is set this weekend for George Carpenter, a 71-year-old U.S. Army veteran and city employee killed by an unknown suspect last month.

A celebration of life service is slated for Sunday at 9:30 a.m. at the Shelby Golf Course at 2021 Fatherland Street.

A 21-gun military salute will be included in the service, said Jackie Jones, a spokeswoman for the Metro Nashville Parks and Recreation Department. Carpenter's funeral was private, Jones said.

Carpenter was gunned down outside the Shelby Golf Course on Sept. 15. Metro police said he was shot in the parking lot as he left his job at the golf course at around 7 p.m.

As of Wednesday, no suspect had been located in the killing and a motive in the case was not known, police said.

Several police officials referred to the shooting as an unusual crime in the normally peaceful area around the golf course.

Carpenter first came to the Shelby Golf Course as a customer decades ago, then later volunteered to help maintain the course. Two years ago, golf course staff said they realized Carpenter was so valuable that they hired him as a part-time employee.

Anyone with information about Carpenter's death is asked to call 615-742-7463.

Reach Natalie Neysa Alund at nalund@tennessean.com and follow her on Twitter @nataliealund.