Graham, 44, was serving a 120-month sentence for possession with intent to distribute 500 grams of cocaine or more and 28 grams or more of cocaine base and possession of a firearm for promoting a drug crime, the agency said. Authorities are still searching for Corey Branch, Lamonte Rashawn Willis and Kareem Allen Shaw, who were reported missing from the Federal Correctional Complex satellite camp in St. Petersburg at about 1:45 p.m. on Saturday, according to the agency. Details of the escape were not included in the news bulletin, other than the BOP calling it a “walk”. The U.S. military, the FBI and other law enforcement agencies are assisting in the search for the men, according to the prison bureau. Branch, 41, was serving a 160-month sentence for possession with intent to distribute fentanyl and a felony possession of a firearm. Willis, 30, was serving a 216-month sentence for possession and concealment of a stolen firearm and possession of a firearm by a convicted felon. Shaw, 46, was serving a 194-month sentence for conspiracy to possess possession of a measurable amount of heroin, the agency said in a statement. The satellite camp is referred to as a minimum security facility, which currently houses 185 male detainees, according to the prison office. CNN’s Amy Simonson and Braden Walker contributed to this report.