CHRISTIANSBURG -- Several pieces of evidence could tie Anthony Edward Adams to the scene of the September crash that killed motorcyclist and Virginia Tech graduate Gregory Jackson, it was revealed in court Tuesday.

Among the evidence presented at a preliminary hearing for Adams were certificates of analysis from the state forensics laboratory.

According to one certificate, glass particles that were taken from Jackson's helmet after the crash were consistent with a Jeep Rubicon reported stolen from Duncan Jeep-Isuzu in Blacksburg, and particles taken from the Jeep's windshield were consistent with Jackson's helmet.

According to another certificate, it's likely that Adams is the person who left DNA on a chewed toothpick found inside the Jeep.

After hearing a little more than an hour of testimony, Montgomery County General District Court Judge Randal Duncan certified several charges against Adams to a grand jury, which will meet July 23.

The 48-year-old Floyd man is charged with failing to stop at the scene of an accident, grand larceny of a vehicle and breaking and entering.

According to a police report of the crash, Jackson, 22, was turning right onto Cambria Street from the U.S. 460 Bypass exit ramp when his motorcycle was struck in the intersection of Cambria and North Franklin Street. He was thrown from the bike and then struck by another vehicle on Franklin.

Christiansburg police Sgt. Carson Altizer testified that he went to the intersection just before 4 a.m. Sept. 7.

Jackson's motorcycle and the side-view mirror from another vehicle lay in the intersection. Jackson was also lying in the roadway. He was breathing but not moving.

"He obviously had a great deal of trauma," Altizer testified.

The rescue squad took Jackson to Montgomery Regional Hospital, where he died.

Christiansburg police Detective Keith Spence testified that a sport utility vehicle belonging to Horne Funeral Service had also struck Jackson. Paint transfer under the SUV matched the paint on Jackson's helmet, he said.

That driver has not been charged in connection with the crash.

The Rubicon was found abandoned about 6 a.m. on Sept. 7 at the Citgo-Deli Mart convenience store on West Main Street. A pack of cinnamon toothpicks and a chewed toothpick were taken out of it, Christiansburg police Detective J.D. Epperly testified.

Adams had been stopped about 11 p.m. on Sept. 6 by Sgt. Timothy Shepherd of the Montgomery County Sheriff's Office. Shepherd testified that Adams was driving erratically on Riner Road.

Adams complained that he had neck problems and couldn't turn his head, Shepherd testified. Shepherd was also told by Adams that his ankle was badly swollen.

Adams told Shepherd he was on his way to Montgomery Regional, so Shepherd called for the rescue squad to take him there.

The pickup truck Adams had been driving was parked at the Citgo-Deli Mart. Before Adams left, he took a pack of cinnamon toothpicks from the truck, Shepherd testified.

The truck was locked and the keys were given to Adams, Shepherd said.

When the Jeep was later found at the convenience store, it was missing a side-view mirror, police have said. Adams' pickup truck, which had been parked there earlier, was gone, Shepherd said.