Charles Wolff, 18, of Barryville, NY, cousin of the late Kyle MacKechnie, 18, of Westfield, pleaded guilty Tuesday in Sullivan County Court to vehicular manslaughter, a felony, in the drunken driving accident that killed MacKechnie, according to The Times Herald-Record.

Wolff admitted driving while ability impaired by drugs and alcohol, a misdemeanor, after a night of partying at his cousin's summer home, The Times Herald-Record reports. Wolff stated that he was the "least intoxicated" of the group, which also included Brian Conaty, 19, of Monticello, and Emily Hoffman, 19, of Eldred, who were both seriously injured in crash. Around 3 a.m. on Dec. 20, Wolff was driving over the 55 mile per hour speed limit on a Lumberland, NY road when the car, MacKechnie's family's Mercedes, drifted and hit a tree before bursting into flames. 

According to The Times Herald-Record, Wolff made an open plea, which means he could be sentenced on Aug. 30 by Judge Frank LaBuda to probation or the maximum sentence of 28 months to seven years in prison. District Attorney Jim Farrell said he doesn't know whether he will recommend county jail or state prison but stated he has been at odds with the victims' families, who will ask LaBuda to sentence Wolff to probation.

The plea agreement calls for a $1,500 fine, $375 in surcharges, a mandatory one-year revocation of Wolff's driver's license and requires that Wolff use an interlock ignition device for an extended period when he obtains a license. Wolff's attorney, John Kelly, declined to comment after the plea, The Times Herald-Record reported.

MacKechnie graduated from Westfield High School in 2011 and was remembered for his kindness to everyone he met.