MOUNT ARLINGTON - Prosecutors say a veteran policeofficer was killed when a man allegedly driving under the influence of a controlled dangerous substance crashed into his police cruiser.

Michael Cassella, 29, of Howell, faces numerous charges, including aggravated manslaughter and vehicular homicide, in the early Sunday morning crash on Route 80 in Roxbury that killed 38-year-old Mount Arlington officer Joseph Wargo.

Morris County Prosecutor Robert Bianchi says it appears Cassella was driving westbound and speeding when he lost control of his vehicle around 12:10 a.m. Sunday. It then slid across the median and hit Wargo's cruiser.

Wargo was flown by helicopter to Morristown Medical Center where he was pronounced dead at 1:25 a.m.

Officer Wargo was the president of his local police union.

Mt. Arlington police officer killed by alleged drunken driver