Renwick was serving 22 years for second-degree murder when he and the other two inmates escaped Friday by cutting a hole in a perimeter fence.
Marson says the other two are believed to be traveling with a woman suspected of helping in the escape.
Authorities believe they're in a silver, four-door Volkswagen Jetta with the Arizona license plate 334 VAN. Police say the men bought the car, but didn't say how or where.
