TAMPA — Besides the tattoo adorning his forehead, Demetrius Parks is a marked man.
The 23-year-old with a lengthy criminal history and a marking between his eyebrows is wanted on a first-degree murder charge in the killing Sunday morning of Family Dollar store manager Horsley Shorter Jr., 49.
Tampa police are getting help in their search. His photo will appear on 30 billboards throughout Hillsborough and Pinellas counties, courtesy of CBS Outdoor and Clear Channel Outdoor. The signs will include the number for Crime Stoppers -- 1-800-873-TIPS -- where information leading to an arrest and conviction could get a $16,000 reward.
Parks racked up a score of felony arrests before he turned 18, records show. He later served nearly three years in prison and has been arrested several more times since getting out in 2012.
Investigators say he shot and killed Shorter early Sunday during a robbery at the East Tampa store. Shorter, they said, was coming to the aid of a clerk during the robbery.