A third Rapid City casino has been robbed in less than a week -- and the weapons used are getting bigger.
The Happy Jacks casino on Cambell Street was robbed early Thursday morning by a person with a sword, a day after two men with knives stole cash from a Happy Jacks on Mount Rushmore Road.
The parent company of Happy Jacks, M.G. Oil, is offering a $10,000 reward for "information leading to the arrest and the conviction of the robbers," vice president Troy Erickson said.
The Thursday robbery took place at 1:35 a.m. An individual described as about 5 feet, 5 inches tall, wearing black "ninja-type" clothing and a mask, walked in armed with a sword and demanded money. The clerk cooperated with the robber, who fled with an undisclosed amount of money.
The employee, who was the only person in the store during the incident, is "pretty shook up," Erickson said.
Erickson said he believes the three robberies -- including an armed robbery of Joker's Casino on Mount Rushmore Road on Sunday morning -- are connected.
Police released surveillance video of the first two robberies and hope the video will help catch the suspects. One of the robbers has a distinct limp.
"I got a feeling that someone knows his distinct walk," Erickson said.
The culprit of the Sunday robbery was described as a male between 20 and 30 years old, 5 feet, 10 inches tall, weighing about 160 pounds, wearing dark clothing and a ski mask and carrying a knife.
Wednesday's robbery was committed by two men, both about 5 feet, 8 inches tall, weighing about 160 pounds, wearing dark jackets, hooded sweatshirts and carrying knives.
Rapid City Police Lt. Tom Vlieger said police don't yet have any proof the three robberies are connected but are investigating the possibility.
Happy Jacks casinos began keeping less cash on premises after Wednesday's robbery, and Erickson said Thursday's robber "got less than the first one."
M.G. Oil has also hired extra security for its casinos.
Though casino robberies aren't unheard of in Rapid City, Vlieger said three in one week is extremely rare.
If individuals find themselves in the middle of an armed robbery, Vlieger said they should comply with the robber's demands.
"We do not advise that they resist the robber's demands for money," Vlieger said.
Anyone with information about these robberies should call the police at 394-4134 or 394-4131.
The police department is also handling inquiries about the $10,000 reward.
Journal reporter Holly Meyer contributed to this report
Contact David Montgomery at 394-8329 or email@example.com