HOUSTON, TX— A customer at Ranchito Taqueria shot and killed a man who robbed the restaurant with a fake gun in southwest Houston late Thursday night. Houston police said the armed man in a mask came inside the restaurant, demanding money and wallets from customers. However, as he was leaving, one of those customers shot the suspect. The customer then took all the money from the robber and returned it to the customers before leaving. Investigators said he is wanted for questioning for his role in the shooting. He has not been identified and is not charged at this time.