The potential star witness against a former U.S. Border Patrol supervisor accused of killing four women in September has been arrested.

Erika Isamar Peña, 27, was arrested last week on charges of assault on a public servant, resisting arrest and terroristic threat, family violence. She was released on bond the following day, according to Webb County Jail records.

A domestic disturbance was reported at about 7:30 p.m. last Tuesday in the 1000 block of East Travis Street. Officers encountered a woman who was belligerent toward a relative. Authorities identified her as Peña.

“According to the female relative, she and Peña got into an argument that escalated to Peña threatening death on the victim,” Laredo police said in a statement.

According to police, Peña walked away as officers tried to arrest her for making a terroristic threat. Officers told her she would face additional charges if she would not comply. Peña continued being non-compliant.

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When officers tried to detain her, officers could not handcuff her because she was stiffening up her arms, according to police. Peña kicked and pushed one of the officers as they tried to handcuff her.

Police eventually detained her, but she broke free from an officer as she was being escorted to a patrol unit, according to police. She allegedly kicked her leg back, striking an officer in the thigh.

She was then arrested and placed in the back of the unit.

Suspected serial killer

Peña is the lone survivor of suspected serial killer Juan David Ortiz’s shooting spree.

Ortiz allegedly confessed to killing Melissa Ramirez, 29, Claudine Luera, 42, Guiselda Alicia Hernandez, 35, and Nikki Enriquez, 28, following his arrest on Sept. 15.

A grand jury charged him in December with one count of capital murder, aggravated assault with a deadly weapon, unlawful restraint and evading arrest.

Ortiz is accused of pointing a firearm at Peña in his pickup. But she escaped and sought help from a Texas Department of Public Safety trooper, authorities said. Her escape is what eventually led authorities to Ortiz.

A GoFundMe account was set up for Peña for psychological and medical expenses. The page shows the account received $10,202 in donations.

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Peña is no stranger to law enforcement.

Court records show she has two convictions for possession of a controlled substance, fail to identify fugitive with intent to give false information and fail to identify by giving false, fictitious information.

She also has two open cases in court for possession of marijuana and criminal trespass, according to court documents.