It's the third robbery at a convenience store already this month and police believe the same man could be behind all three.
Police investigate the scene after a man robbed the Kwik Shop on 23rd and Cornhusker Hwy. just after 12:30 Thursday morning.
Police say the suspect walked into the store, threatened the clerk with a box cutter and demanded money from the register then left in a blue Ford Station Wagon.
Officials say a couple was just pulling into the parking lot when the suspect ran from the store and jumped into his car.
"Her and her boyfriend followed the car updating dispatch with his location," Officer Katie Flood said. "Officers initiated a traffic stop on that vehicle at 20th and Cornhusker but the driver accelerated westbound at a high rate of speed."
Police say the suspect's speeds reached more than 70 miles-per-hour. At one point, they say the suspect was driving into oncoming traffic on Cornhusker Highway.
"For the safety of others, officers chose not to pursue the vehicle."
Police say this is the third convenience store robbery in the last two weeks.
On June 15th, the Git N' Split on West "O" St. was robbed by a man carrying a knife. Three days later, a similar incident at the Casey's General Store near 70th and Adams.
"It's not uncommon for Lincoln to have convenience store robberies. However, it's unusual that these are in such quick succession and we cannot deny the fact that the method is the same as well as the description of the suspect."
Police say they commend the couple who followed the suspect and kept police up to date on his location.
They are tracking the suspect's license plate number.