Published: Sep 28, 2011 5:10 PM EDT
Updated: Sep 28, 2011 10:34 PM EDT

FORT MYERS, Fla.- Detectives with the Lee County Sheriff’s Office Major Crimes Unit have released surveillance video from the Sunday morning armed robbery of a convenience store that turned deadly.

Deputies were called to the Back Bay Market at 394 Ortiz Avenue shortly before 2:00 am on Sunday morning. There they discovered store clerk Muhammad Ali, 29, seriously injured suffering from a gunshot wound. Ali was rushed to the hospital where he later died.

Detectives are hoping someone will recognize the two black male suspects that stormed the convenience store wearing what appear to be Spiderman and Grim Reaper masks.

If you recognize these cold blooded killers, or know anything about the Back Bay Market armed robbery, call the Lee County Sheriff's Office at (239) 477-1000. Or to remain anonymous and be eligible for a cash reward of up to $1,000, call Southwest Florida Crime Stoppers at 1-800-780-TIPS. Anonymous tips may also be made online at www.swflcrimestoppers.org, through the TipSubmit app on any iPhone or by texting CRIMES (274637) Keyword: REWARD.

These men are considered armed and extremely dangerous.