The U.S. Border Patrol supervisor is being held on a $2.5 million bond in Texas, after being found at 2am hiding in a truck in a hotel parking lot in Laredo on Saturday. "He was profiling certain kinds of victims", Alaniz said according to CNN, adding "the suspect was hunting for his victims".
Cueller did say that authorities have "very strong evidence" to link Ortiz to the crimes, and called him a "serial killer".
Webb County District attorney Isidiro Alaniz said that the man could be described as a serial killer.
Ortiz was a 10-year veteran of the Border Patrol. However, when the suspect pulled a gun on the woman inside his vehicle, she fled and was able to contact police.
NBC News reached out to the Webb County public defender's office and did not get a response on whether Ortiz has legal representation. Police were alerted to a third body Saturday morning and then a fourth around noon on Saturday along I-35 outside Laredo.
Ortiz is charged with four counts of murder and one count of aggravated kidnapping.
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A United States border patrol agent has been arrested for the murders of four prostitutes inside two weeks after a fifth woman raised the alarm by fleeing from him to a petrol station in Texas.
The woman reportedly told law enforcement that Ortiz "hunted for his victims".
All four of Ortiz's victims were reportedly sex workers at the time he abducted them. Two of the victims were USA citizens, while the others' nationalities are not known, he added.
The victims were shot in the head, according to the affidavit. CBP says in a statement that while it is the agency's policy not to comment on an ongoing investigation, "criminal activity by our employees is not, and will not be tolerated". Luera was found still alive but in critical condition Thursday near a stretch of Texas Highway 255, but she died at a hospital. Pena said that when she mentioned Ramirez's murder the week before, Ortiz "began to act weird", according to the affidavit. Laredo is about 150 miles southwest of San Antonio.
"I extend my condolences to the families of the victims during this hard time".
Alaniz says authorities are still trying to determine a motive for the killings. We also spoke about hiring more Professional Responsibility officers so that they can police their own.