The man charged with killing popular teacher and the teacher's 5-year-old daughter in a fatal Turnpike crash told police he hadn't slept for 26 hours — and took 10 Adderall pills — according to a report by NJ Advance Media.

The crash near exist 14C of the New Jersey Turnpike Tuesday killed Tim O'Donnell, 48, and his daughter, Bridget, 5. The two were returning home from County Prep High School in Jersey City, where O'Donnell worked.

Scott Hahn, 36, of Hamilton, has been charged charged with two counts each of aggravated manslaughter and vehicular homicide.

"This will turn out to be nothing more than an accident," Hahn's lawyer, Frank Gonzalez, said Wednesday, when he entered a plea of not guilty for Hahn, NJ Advance Media reports.

The news organization cites a criminal complaint saying witnesses said Hahn was driving erratically, traveling "across (westbound) lanes, alternately accelerating and decelerating, sideswiped a road barrier" before striking O'Donnell's car from behind.

Hahn's bail was kept at $1 million Wednesday.

According to State Police, troopers responded to the three-car crash westbound on the New Jersey Turnpike at 3:19 p.m. Tuesday. O’Donnell, who was driving a 2001 Chevrolet Malibu, was slowing with traffic in lane 10 at the tolls, State Police said.

Hahn was driving a 1998 Mercedes-Benz when he rear-ended O’Donnell’s car, police said. The impact pushed O’Donnell’s car through the tolls and into the eastbound lane, where it was was struck by a 2013 Mercedes-Benz being driven by Eliasar Morales, 51, of Bayonne, police said.

Timothy O’Donnell was pronounced deceased at the scene at 3:41 p.m. Bridget O’Donnell was transported to Jersey City Medical Center where she was later pronounced deceased at 3:43 p.m.

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