UPDATE: Suspect Arrested; Four Officers Shot, One Killed in Separate Attacks on Sunday

UPDATE BELOW:

Four police officers in three states were shot in four separate attacks on Sunday. Three officers were wounded and two suspects killed in shootouts in St. Louis and Gladstone, Mo., and Sanibel, Fla. In San Antonio a manhunt was still underway Monday for the unidentified man who fatally shot a San Antonio police officer at a traffic stop in what cops are saying was an ambush.

"I feel we (police) were targeted," Police Chief William McManus said. "I think the uniform was the target."

Via Fox News:

An extensive police dragnet had failed Monday to catch the unnamed suspect in the ambush killing of Detective Benjamin Marconi, 50, a 20-year veteran. Marconi was the first of four police officers in three states shot during a seemingly unconnected Sunday spree.

Three of the incidents appeared to be targeted attacks and involved law enforcement officers sitting unsuspectingly in their patrol cars, either waiting in traffic or after pulling vehicles over for traffic stops.

On Monday, San Antonio authorities released video surveillance footage showing an African American man outside police headquarters.

He is seen speaking to a clerk on an intercom before being let in to a vestibule. But the man only stayed a short time before leaving. McManus wouldn't detail what the suspect said, only that he asked a question.

"I don’t know why he was in headquarters," McManus said. "We have some ideas why we believe he may have been in headquarters, but we're not sure."

Four hours later, the man is suspected of killing Marconi as Marconi sat in his patrol car across from police headquarters writing a traffic ticket at 11:45 a.m. local time.

While Marconi was in the squad car, a vehicle thought to be driven by the suspect pulled up behind him. A man got out and shot Marconi twice in the head. The final shot was fired as the assailant reached inside Marconi’s passenger window to shoot the father of two at close range.

McManus said dashcam footage of the incident existed, but he wouldn't say what was on the video.

Texas Governor Greg Abbott released the following statement on the murder of Detective Marconi:

Two other shootings that occurred Sunday also appear to be ambush-style attacks on law enforcement.