Tempe detectives ask for public's help to solve double homicide

Posted: Updated:

TEMPE, Ariz. -- Tempe police have more questions than answers in a week-old double murder, and they're turning to the public for help.

On the evening of Aug. 5, police received a call from the parents of a 19-year-old employee of HD Industries, a machinery shop in Tempe. John Louis Call's parents were concerned that he had not come home from work and they were not able to contact him.

Officers went to the business at Curry and McClintock roads to do a welfare check. Once there, they found Call and another man had been shot to death. The second victim was identified as James Sheldon Mosteller, 53. Mosteller reportedly was the owner of the business.

After a week of investigation, detectives still have very little to go on. They do not believe this was a murder-suicide. They are investigating the case as a double homicide, but they don't have any details about a suspect or motive.

"When it first happened, it was very sudden, not a whole lot of witnesses in that area that we could immediately find." said Sgt. Steve Carbajal of the Tempe Police Department. "Now, it's just a lot of questions that we're trying to answer right now. We're hoping that somebody has some information and comes forward. That would be a tremendous help to our investigators. "

Carbajal said detectives have literally been working around the clock.

Anybody who has information about the case is urged to call the Tempe Police Department or Silent Witness.