Authorities said the police unit was trying to arrest a suspect in Tijuana when the man opened fire, hitting and killing 33-year-old Abigail Esparza Reyes.

An escaped California inmate is now wanted for killing a Mexican police commander who hunts down foreign fugitives -- also known as a "gringo hunter" -- during a shootout in Tijuana, officials said. Abigail Esparza Reyes,

An escaped California killer convicted in a Los Angeles County murder is sought in connection with a shootout in Tijuana that killed a law enforcement officer. The California Department of Corrections confirmed the investigation involving the U.