A suspect ambushed and shot three constable deputies outside a bar in Houston, Texas, early on Saturday, local authorities said, leaving one deputy killed and two others wounded. Houston Police Executive Assistant Chief James Jones said during a news conference that a person of interest was taken into custody, but it wasn’t clear if the person was a witness or a suspect. Officials noted that they are still looking for the suspect believed to be the shooter. Jones explained that the deputies were working for a police-related extra job at 45 North Bar and Lounge when a disturbance, likely a robbery, happened around 2:00 a.m. local time, leading to the deadly shooting. “[The deputies] went outside to address a disturbance … it turns out it may have been a robbery,” Jones said, according to preliminary information from the scene. “They were trying to arrest a suspect, or detain a suspect, and …