A suspect is arrested nearly four months after a man is gunned down outside a Louisville grocery store.

21-year-old Alfred Smith was shot and killed outside Cecil Payne's Grocery Store back in March.  Tyson Mimms, also 21, is charged with murder and tampering with physical evidence.

Police say an eyewitness identified him as the person who shot Smith.  Officers say after the shooting Mimms hid the gun in order to keep evidence from police.