Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Royal Oak Mines:

"

Union member and dismissed miner Roger Warren later confessed to and was convicted by a jury of nine counts of second degree murder, being sentenced to life imprisonment.[1] In 2004, he blamed Royal Oak Mines, the security company, and his union. He argued that a simple screen and padlock over a broken window would have dissuaded him, and that he was only capable of the bombing because replacement workers had been "dehumanized" by his union.