NASHVILLE, Tenn. (WKRN) — Metro police have identified the 23-year-old suspected of fatally stabbing a man who robbed him outside of a South Nashville gas station earlier this week.

Officers responded around 7 a.m. Monday to the Mapco on East Thompson Lane and Murfreesboro Pike where they said they located the body of 43-year-old Leonard McKnight.

According to police, Omar Guillen-Garcia bought coffee for McKnight, who then demanded more. McKnight reportedly punched Guillen-Garcia, took his wallet and ran.

Police said Guillen-Garcia chased after McKnight, grabbed a “sharp instrument” from him and stabbed McKnight to death. Witnesses described the “sharp instrument” involved as an ice pick.

  • Gas station stabbing suspect
    Man suspected in fatal stabbing (Photo: Metro Nashville Police Department)
  • Omar Guillen-Garcia
    Omar Guillen-Garcia (Photo: Metro Nashville Police Department)
  • mapco fatal stabbing
    (Photo: Maura Sirianni/WKRN)

A warrant was issued for Guillen-Garcia’s arrest on a charge of criminal homicide, police revealed Wednesday morning.

Anyone with information on the suspect’s whereabouts is urged to contact Nashville Crimestoppers at 615-74-CRIME.