Fort Worth police officer William Martin gives different descriptions of the off-duty shooting in his affidavit

“Christopher then drove away and was again pursued by Martin until officers on duty arrived and stopped him,” the report said.

“If this affidavit is true, we are dealing with a police officer who decided he was above the law, and that is unacceptable,” said Alex del Carmer, associate dean of criminology at Tarleton State University. “I mean, that's road rage, right? Here and everywhere in the United States.”

Martin's legal team says the officer was trying to protect the public from a dangerous driver.

In an affidavit to police, Martin claims he cornered Christopher during his pursuit, but Christopher's truck rammed his car.

Martin said he got out of his vehicle, pointed his gun at the truck and ordered the driver to get out. When he heard the truck's engine rev and continue driving, he opened fire because he believed Christopher was going to run him over.

Detectives interviewed 14 witnesses who saw the shooting.

“All witnesses stated that Martin was not in danger of being struck by Christopher’s vehicle,” the arrest warrant affidavit states.

Christopher's lawyers have scheduled a press conference for Tuesday morning.

Martin is currently on special duty while the Fort Worth Police Department's Bureau of Investigation investigates the incident.

Arrest of Jacqueline Craig

Martin's legal team also claims that police were “motivated” to arrest their client by a 2016 incident that was captured on video and attracted national attention.

Martin was accused of using excessive force during the arrest of Jacqueline Craig and her daughter after Craig called the police to complain about her neighbor.

A video showed Martin wrestling Craig and one of her daughters to the ground.

Martin was suspended for 10 days and the city eventually reached a $150,000 settlement with the Craig family in a civil rights lawsuit.