The state attorney's office says Judge Mallory Cooper sentenced 33-year-old Tyrone Hartsfield on Thursday. He was convicted last month.
Assistant State Attorney Bernie de la Rionda calls the decision "the appropriate sentence."
A message and an e-mail sent to Hartsfield's attorney were not immediately returned.
Collier was shot six times last year as he waited in his car outside a Jacksonville apartment building. He was paralyzed from the waist down and his left leg was amputated.
Prosecutors say Hartsfield was seeking revenge after he was knocked out in a fight with Collier in April at a nightclub.