Mexican Officials and Witnesses Recount Gunbattle That Captured Son of Joaquín ‘El Chapo’ Guzmán

In the predawn hours of Jan. 5, hundreds of Sinaloa cartel gunmen raced to this dusty town to try to rescue their boss from Mexican soldiers who had laid siege to his ranch, according to residents, gang members and Mexico’s military.

But the small army of gunmen proved no match for Mexico’s military, which used gunships to strafe the convoy of pickup trucks rigged with makeshift armor and high-caliber guns in the capture of Ovidio Guzmán, the son of former Sinaloa cartel boss Joaquín “El Chapo” Guzmán, witnesses said.

“We were...