ICE notified Moore in late August that he was going to be fired and instructed him to come to the agency’s Philadelphia office, according to two federal officials who also spoke on the condition of anonymity to discuss personnel matters. ICE had identified issues in his past, the officials said, including being fired from other law enforcement agencies.
The 38-year-old father of two had fought for his job when supervisors wanted to fire him in the past.
This time, he parked his car in a lot outside the office, and he had his gun. Law enforcement officers tried to stop him, but Moore eventually shot and killed himself, according to the Philadelphia Police Department.


Sounds like a two-time loser. In his first job he arrested a jail captain(!) and was told to quit. He got another cop job in another town, but then:
(His family disputes the allegations, naturally.)