A robbery suspect slipped cash out of a register while employees at a Springs pizza chain weren't looking.
Police say when an employee confronted him on his way out the door, the suspect threatened him with a knife.
The incident happened at the Blackjack Pizza on Centennial just before 9 Monday night.
The suspect description is limited. All police know right now is that he is a white male, wearing dark pants and a gray top.
If you have any information on this crime, you are asked to call Crime Stoppers at 634-STOP.