Feb. 13 (UPI) -- A grand jury on Friday indicted Terrell Storey for murder and on 58 other charges after allegedly causing the deaths of two troopers when their police helicopter crashed in Flagstaff, Ariz.

Storey, 50, faces two counts of first-degree felony murder and 58 other felony charges in the Coconino County Superior Court arising from the deaths of Department of Public Safety trooper and paramedic Hunter Bennett and DPS helicopter pilot Robert Skankey.

"Our hearts remain with the families of Hunter Bennett and Robert Skankey, and with all the families impacted by this incident," Coconino County attorney Ammon Barker said in a prepared statement.

"We are committed to pursuing this case with the diligence and care it requires," Barker added.

Storey is accused of using a rifle to shoot at the helicopter while he jumped from rooftop to rooftop and exchanged gunfire with local police.