A Fenton man faces terrorism charges after threatening to kill someone he works with. In an email to 34 coworkers, Stephen Challis asked recipients to decide who should die and said he would carry out his plan the following week.

Challis, who works at Flex Live Smarter Corp. in Farmington Hills, was working on a joint venture with employees at Nexteer Automotive at three facilities. He learned of a decision that he believed would set the project behind by several weeks, sparking the threat.

Since Challis lives in Fenton, authorities in Genesee County are handling the case. Prosecutor David Leyton tells WJRT the threat is being taken very seriously.

"Making threats to shoot and kill others is something law enforcement and my office take very seriously. Our nation has experienced too many tragedies over the years with mass shootings in the workplace, in schools and other locations and anyone who makes threats to carry out such acts will be held accountable under the law.”

Challis has posted bond and is under house arrest with a tether at his Fenton home.