CASPER, Wyo. (AP) — Prosecutors have charged a Wyoming man with two counts of aggravated vehicular homicide in connection to an August crash that killed a mother and her young son.

BILLINGS, Mont. (AP) — Yellowstone National Park Superintendent Dan Wenk plans to retire next March 30, ending a 44-year career with the National Park Service.

CASPER, Wyo. (AP) — A Wyoming man sentenced to 37 years in prison for torching the Sheridan County Attorney's Office four years ago has lost an attempt to have his sentence vacated or changed.