According to KENS5, the suspect in the ambush murder of San Antonio Detective Ben Marconi was just captured.

#BREAKING – Source tells KENS5 suspect arrested @ I-10/FM 1516 (East Bexar County) a short time ago. Chopper5 LIVE: https://t.co/AtNNFpZPlC

— Dan Roche (@danrocheca) November 21, 2016

MySA has more, suggesting that the suspect may have given up because a woman and child were in vehicle when SWAT officers closed in:

San Antonio police have arrested a suspect in the fatal ambush shooting of SAPD Det. Benjamin Marconi, according to a police source.

A SWAT team pulled over a vehicle on Interstate 10 East near Ackerman Road around 4:20 p.m. and made the arrest. A female and child also were inside the vehicle, the source said.

Police have called a press conference at 5:15 p.m. Check back for more on this developing story.

The capture of the as-yet-unnamed suspect in San Antonio means that all four suspects involved in shooting police officers yesterday are either dead or in custody.

Update: The suspect has been identified as 31-year-old Otis Tyrone McKain.