Robber Bought 2 Shots of Whiskey With $100 Bill Before Holding Bartender at Gunpoint, Police Say

The robber left a 50 cent tip behind, police said.

The suspect, who remains at large, walked into the restaurant, Ma's Place, Monday around 9 a.m., ordering two shots of Jack Daniel's and handing the bartender the $100 bill, Puyallup Police Capt. Scott Engle told ABC News today.

The bartender, who only identified herself as Rachel to ABC affiliate station KOMO-TV in Seattle, said when she turned around, "he had a gun up and said, 'Give me all the money in the register,' and so I did."

Her "insides melted" the moment she saw the gun, she added.

"[He] told me if I called anybody then he'd be back," Rachel told KOMO. "He scooped all [the money] up but left me 50 cents, so I think I'll frame those -- lucky quarters."

Puyallup police believe the suspect is tied to two other armed restaurant robberies last week in Pierce County, one at The Buttered Biscuit in Sumner and another at Elmer's Restaurant in Tacoma, Capt. Engle said.

"We determined it was the same man based on security footage," he explained. "He also appeared to have the same M.O. All three were armed robberies at restaurants, where he had a drink, pulled out a weapon and escaped with cash."

All three police departments are working together to find the suspect, Engle said, adding that they are asking for anyone who has any information on the suspect or can identify him to come forward.

"He's been successful three times, so he's probably getting more bold and feeling like maybe he can get away with more," he said. "So we need the public's help in this case to identify him and quickly apprehend him."