Garland police are looking for an 18-year-old man suspected of killing another man in a convenience store robbery May 22, police said in a statement.

18-year-old Luis Alejandro Espinoza is wanted for capital murder and has a warrant out for his arrest, police said.

Espinoza is one of two suspects seen on security camera footage the night 30-year-old Heng Lam was shot to death in a convenience store in the 4400 block of West Walnut Street in Garland, police said.

"Investigators were able to obtain security video showing two male subjects entering the store with handguns drawn, demanding money from two clerks," the statement said.

Police said Espinoza is considered armed and dangerous. Anyone with any information on his whereabouts is urged to call 911 or call the Garland Police Department at 972-485-4840.