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Murder, Assault Charges Filed in Northern Arizona University Shooting

Steven Jones had faced first-degree murder for the Oct. 9 shooting that left one dead and three hurt, but a second-degree murder charge was filed.

An 18-year-old accused of opening fire at Northern Arizona University, killing a student and wounding three others, has been formally charged with murder and assault.

Steven Jones, a freshman at the university, was charged Tuesday with second-degree murder and six counts of aggravated assault, according to court documents.

Image: Northern Arizona University released booking photo of suspected gunman Steven Jones
Suspected gunman Steven Jones, a freshman at Northern Arizona University in Flagstaff is shown in this booking photo released on October 9, 2015.HANDOUT / Reuters

When Jones was arrested after the Oct. 9 shooting outside a residence hall on the Flagstaff campus, he faced first-degree murder. The lesser charge indicates the killing was committed "without premeditation."

Colin Brough was killed and three other students — Nicholas Prato, Kyle Zientek and Nicholas Piring — were wounded.

Authorities said the shooting was preceded by a fight between two groups of students.

Jones said he ran to his car and was being chased for a time, and grabbed handgun from his car, according to a police report obtained by NBC affiliate KNAZ. Jones reportedly told police that he yelled that he had a gun, and shot two victims when they turned to confront him, the station reported.

Jones is being held in lieu of $2 million bail.