Roswell Police Department detectives are actively searching for a missing Roswell man. Robert Lueras, 48, has been missing since Dec. 21. Lueras walked away after an argument with another man. He left his dog inside his truck, which was parked on the 2700 block of Largo Drive. His family members have not seen nor heard from him since that time. Police urge people who know of his whereabouts to contact the RPD at 575-624-6770.