Jeffrey D. Allred, Deseret News
Law enforcers investigate the scene of an officer-involved shooting on state Route 73 in Eagle Mountain Thursday, Jan. 30, 2014.

One sheriff's sergeant was killed, a second deputy was injured, a vehicle was carjacked, gunfire erupted at four different scenes along a 50-mile stretch over two counties, and a suspected gunman was critically injured after being shot by police.

Read the full story: Deputy killed, another injured in 'evil run through Utah County.