He had a relationship with the ex-girlfriend, who works for the LAPD crime lab, sporadically over four years, according to the temporary protective order against her that he requested in Clark County Family Court in May.
The relationship deteriorated to the point that in April, he wrote in the order that she threatened to kill herself after he told her he didn't want her to contact him again. The next day, he saw her parked outside his Las Vegas home. She banged on his door and rang the doorbell, prompting him to call the Metropolitan Police Department. When officers arrived, she was gone. But she returned at the request of the officers, who told her not to contact Dorner again.
But according to Dorner, the harassment didn't end. A few days later, he wrote that the Los Angeles Police Federal Credit Union notified him someone had tried to change the password to his account, and evidence showed the request came from his ex-girlfriend's home address.
Dorner filed the protective order the next month, and it was granted.
He wrote in his manifesto posted on the Los Angeles Times' website that though the credit union confirmed she had tried to break into his account, the department let her stay on the force.
"You allow an officer, (name redacted), to attempt to hack into my credit union account and still remain on the job even when Det. (name redacted) shows the evidence that the IP address
that attempted to hack into my account and change my username and password leads directly to her residence," he wrote.
"Det. (name redacted) provided the evidence and you still do nothing."
A message left on the ex-girlfriend's cellphone was not returned.
I had a rookie almost get me and the crew killed by discharging his weapon when he pulled it. 
