Police say the 22-year-old male suspect in Sunday evening's shooting in Topeka remains at large and is believed to still be armed.
CBS affiliate WIBW-TV in Topeka reports the name of the suspect being sought is David Edward Tiscareno, a Topeka resident.
The officers were shot when they responded to a report of a suspicious vehicle near the store. The officers have been identified as 50-year-old Cpl. David Gogian and 29-year-old Officer Jeff Atherly.
A witness told WIBW the shooting happened just outside the entrance of Dillons. The witness said he heard three gun clips emptied, then heard another series of shots.
A small crowd gathered for a candlelight vigil outside police headquarters as reporters nearby were given the news of the officers' deaths.
Gogian had been with the department since September 2004 and Atherly since April 2011.
Authorities found the reported vehicle outside a house 10 blocks from the store.
Officers searched the house but didn't find the suspect.