Caddo authorities are searching for an armed robbery suspect. Caddo sheriff's detectives have an arrest warrant for 19-year-old LaTerrence Nelson, who's wanted for the armed robbery of a woman in north Shreveport this past week. Just after 2 a.m. on July 25th, the woman arrived home in the 1000 block of Wilton Place, and -- while she was still in her car -- was approached by a man who pointed a handgun at her and demanded her purse, keys and cell phone. Then he ran to a nearby dark, small-to-midsize car, got into the passenger's side, and left. Take a look at the photo posted here and if you recognize him, call Caddo detectives or Crime Stoppers.