HONOLULU, Hawaii -- A Hawaii man faces charges after allegedly threatening to kill Michigan governor Gretchen Whitmer.

According to our ABC12 reporting partners in Honolulu, 48-year-old Ronald Saville allegedly sent Michigan State Police threatening emails back in May. Investigators say that in the emails, Saville said he was "going to walk in with a gun at A.R. 15 and open fire and kill as many people as possible."

Saville then sent a second email to Gov. Whitmer saying, in part that he was "going to walk into the state capital shoot it up and kill as many people as possible," and that he was "coming for you."

Saville was located and arrested in Texas on June 1. Investigators say Saville admitted to wanting to assassinate Gov. Whitmer over her political stance. He also admitted to researching a trip to Michigan.

He was previously convicted of making threats toward former president George W. Bush in 2006 and United States District Judge Susan Oki Mollway in 2012.

Saville faces up to 5 years in prison per count if convicted.