The Broward County Sheriff's Office said the victim told them the robber approached him from the back while he was walking near Fort Lauderdale around 8 p.m. May 30 and held what he believed to be a box cutter to his throat, the South Florida Sun Sentinel reported Tuesday.
The victim fought with the mugger and the suspect dropped his cellphone, investigators said. Deputies said the phone contained at least three photos matching the victim's description of the attacker.
The sheriff's office released the photos to the public Monday. Deputies said a reward of up to $1,000 is being offered for information leading to an arrest.