Silent Witness is offering a $1,000 reward for information about the murder of Hosakode Shivaswamy, 84, stabbed to death outside a Chandler fitness center.
Shivaswamy was found dead inside black Honda at the LA Fitness at Warner and Dobson.
"It's very shocking because there is all these people going in and out... and for nobody to see that, that was strange," LA Fitness member Robert Kamp said.
"It's sad that you have to be on the lookout all the time and it's really sad to be in that situation," neighbor Frank Canez said.
Neighbors say he was very active, and they would see him exercising in the neighborhood.
Chandler police are reviewing security video from nearby businesses for clues about the murder.
"We are actually working with a detective right now," Nutrishop Manager Max Resendez said. "He is getting access to our surveillance we actually have two cameras right now that face the parking lot."