Ex-Walgreens employee , Matthew Kell, has been arrested on suspicion of robbing seven pharmacies

An ex-Walgreens employee has been arrested on suspicion of robbing seven pharmacies from June to July, police said.

Matthew Kell, 30, was arrested in Anaheim for a warrant on charges of robbery, burglary and theft in connection with crimes committed in the east Valley.

Kell is accused of stealing OxyContin pain pills, detectives said.

Chandler and Mesa detectives said they worked closely with the Anaheim and Los Angeles police in locating, tracking and arresting Kell.

Kell was recognized by another former Walgreens employee through an RXPatrol bulletin issued about the string of thefts, robberies and burglaries, said Detective David Ramer

In addition, an off-duty Chandler officer recognized Kell in the bulletin as a person he had seen at a fitness center.

The East Valley Gang & Criminal Information Fusion Center coordinated the multiple investigations out of Chandler, Mesa, Tempe, Scottsdale and Gilbert, Ramer said.