Dallas – After an attack on Dallas Police Headquarters early Saturday morning that resulted in a standoff between police and a man in an armored vehicle, police claim that the suspect and only fatality identified himself as James Boulware. Boulware’s father said he believes that his son was responsible for the attack, and that he had “reached his breaking point” after he lost custody of his own son, and blamed police.

The New York Times reported that, according to police, “a gunman attacked Police Headquarters at the edge of downtown here from inside an armored van early Saturday, shooting at officers and leaving bags filled with pipe bombs around the building in a brazen assault that led to an hourslong standoff.”

“Every one of us has a breaking point… he hit his,” Jim Boulware told CNN on Sunday, regarding his son James.

“I knew he was angry with the police, he blamed them for taking his son,” Boulware said. “I tried to tell him the police didn’t do it, they were doing their job, to enforce the laws. If you want to get to that, you gotta go back to the liberal people that put these laws in place, to where CPS can grab kids and take them away.”

Although Dallas Police Chief David Brown would not confirm the identity of the suspect, he did confirm that the man who police believed was responsible for the attack was killed by a police sniper after he was shot at 5:07 a.m. on Saturday by a bullet that went through the front windshield of the armored van he was driving.

Jim Boulware said that he believes his son James was the one who was responsible for the attack, and that he did it as a way to “make a statement” and to “get the system to understand he had lost his son, and it cost him his life.”

CNN reported that James Boulware lost custody of his son after he was arrested in 2013, for “multiple assault charges on family members,” which were eventually dropped.

Jeannine Hammond, James Boulware’s mother, told Fox 4 News that her family lost her son to “mental health long before we lost him to death,” and that despite erratic statements and threats in the past, she “never dreamed he’d go after the police.”

Hammond said that Boulware had issues as a teenager, and that although they believed it was paranoid schizophrenia, he was “too young to diagnose.” Hammond also said that she believed if Boulware went after anyone, it would have been her, because she was awarded full custody of his son.

Boulware’s father told the Associated Press that while he “can’t say shooting at a police station is right in any way,” he believes his son James “finally snapped” after he was not able to get a job with “domestic violence” on his record, and he felt like the legal system was letting him down.