ALBQUERQUE, N.M. (AP) — Authorities say they're still searching for the seventh and final suspect in a robbery killing of an attendant at an Edgewood gas station along Interstate 40.

New Mexico State Police arrested a sixth person in connection with the case Saturday.

Five others were arrested previously in the Feb. 11 shooting of 62-year-old Michael Pelkey at a Smith's Fuel Center.

The suspects were identified thanks to tips from the community.

State Police say the lone remaining suspect is a 30-year-old man who remains at large.

Investigators still aren't sure what suspect fatally shot Pelkey.

Edgewood is 24 miles (39 kilometers) east of Albuquerque.