This is the first look at the US Border Patrol supervisor accused of murdering four prostitutes in a two-week Texas killing spree that only ended when a would-be fifth victim escaped and got help.

Juan David Ortiz, a 35-year-old intel supervisor with the Border Patrol, is charged with four counts of murder for the string of killings that began on Sept. 3.

Officials on Sunday released this mugshot of the 10-year Border Patrol veteran, now in gray-striped jail attire, staring straight ahead, expressionless.

“The city can rest assured we have the serial killer in custody,” Webb County Sheriff Martin Cuellar told the Laredo Morning Times.

Ortiz allegedly picked up the victims, shot them each in the head and dumped their bodies in a rural area of the south Texas county, the paper reported.

The spree came to an end Friday when a fifth woman Ortiz pulled his gun on fought him off, hopped out of his car and ran to a gas station pleading for help, according to the report.

Ortiz was arrested early Saturday cowering in the parking garage of a nearby hotel.

He has admitted the slayings to cops, the paper reported, citing a police affidavit.