Police hoped a surveillance tape from a Leavenworth business would help the investigation, but police Sgt. Billy Adcox said the footage was inconclusive.

“We reviewed the film and it is not our person,” Adcox said Monday.

Although the Leavenworth business was not robbed, employees there contacted police last week saying they possibly had a customer who might have been connected with the Subway robbery. The Leavenworth business sells guns and ammunition, among other things, Adcox said.

Subway workers described the suspect as a white male in his 20s, 5-foot-8 and about 150 pounds. The man entered the restaurant about 9:55 p.m. — minutes before the store was to close — and told workers he had a gun in the front pocket of his hooded sweatshirt. The suspect did not display the gun during the robbery, Adcox said.

The man took roughly $350 from Subway and then fled west to the nearby Sonic restaurant, 550 Northstar Ct.

Sonic manager Charlie Kraut said workers told him the suspect started to make his way through the front door and apparently changed his mind and ran northwest from Sonic.

Tonganoxie police, with help from the Kansas Highway Patrol, Leavenworth County sheriff’s office and the Johnson County K-9 Unit, canvassed an area bordered by U.S. Highway 24-40 on the south, Smiley on the west, Parallel on the north and 218th on the east for three hours. A KHP helicopter also was used in the unsuccessful search.

If apprehended, the suspect could be arrested on armed robbery even though he might not have had a gun. Adcox said if the man said he had a gun, it would be considered armed robbery.

As for finding the suspect, Adcox said police have no new leads. Artist sketches of the suspect were not drawn from witness accounts either, he said.

“We are back to square one,” Adcox said.