A man suspected in more than 20 recent armed robberies in Los Angeles and Orange counties was in custody today, and authorities urged other possible victims to contact them.

Detectives said the series of crimes, “likely committed by a single suspect,” began in early October, with the last armed robbery occurring Nov. 19.

“The lone suspect would approach store employees, point a handgun at them, and demand cash,” according to the Los Angeles County Sheriff’s Department.

Darryle Samuel, 26, of Long Beach, was arrested Nov. 20, booked on suspicion of robbery at the sheriff’s Century Station and was being held without bail, according to the sheriff’s department.

Samuel was on active parole for a previous robbery conviction at the time of his arrest, sheriff’s officials said.

“Darryle Samuel is a documented criminal street gang member with multiple felony convictions including robbery, weapons violations, carjacking and thefts,” according to the sheriff’s department. “He will soon be transferred into federal custody where he faces felony indictments for the multiple recent armed robberies.”

Following the arrest, detectives recovered a firearm, cash and clothing believed worn in the robberies, the sheriff’s department reported.

If convicted, Samuels faces a term of more than 100 years in federal prison.

Anyone who believes they were victimized by Samuel was urged to call Crime Stoppers at 800-222-TIPS.