BEND, OR -- A 21-year-old is accused of robbing a Bend convenience store. 

Police say just before 6 p.m. Thursday, a man armed with a knife demanded cash from employees at the 7-11 near 8th and Greenwood. He took off on foot before getting any money.  

Within four minutes of getting the call, officers arrested Nathaniel McLain a few blocks away. A K-9 officer recovered a knife nearby. 

McLain is charged with Robbery, Menacing and Unlawful Use of a Weapon.