David Ludwig was taken into custody Monday after he crashed his parents' car head-on into a tree in Belleville, 20 miles west of Indianapolis, and some 600 miles from where the killings took place.

His girlfriend, Kara Beth Borden, was unhurt. It was still unclear whether Ludwig kidnapped her or if she left with him willingly after her parents, Michael F. and Cathryn Lee Borden, were shot to death early Sunday.

Police say Ludwig killed them after they and their daughter argued about her curfew when she came home late. The shootings happened at the family's home near Lititz, Pa., about 60 miles west of Philadelphia.

Ludwig could waive extradition, clearing the way for authorities to take him back to Pennsylvania to face charges. Otherwise, an extradition hearing would be held Tuesday or Wednesday, said Hendricks County Prosecutor Patricia Baldwin.

He faces preliminary charges in Indiana of criminal recklessness and resisting law enforcement, authorities said. Police in Pennsylvania issued an arrest warrant for Ludwig on charges of criminal homicide and kidnapping.

Few details were known about the pair's trip. Authorities said they don't know the route they traveled, if they had family or friends in Indiana or if they were simply passing through the state.

The Bordens, both 50, were apparently shot once each in the head, authorities said. Mike Borden worked for a printing company, and his children were home-schooled, said neighbor Tod Sherman. Sherman said the family knew Ludwig through a home-schooling network.

Kara's 13-year-old sister, Katelyn, told investigators her parents were shot after they argued with Ludwig for about an hour, according to court papers.

Katelyn said she saw Ludwig shoot her father, and then ran into the bathroom, where she heard a second shot, presumably the one that killed her mother, court papers said. Ludwig then ran through the house calling for Kara, she told investigators.

"It's completely insane, completely insane," Lancaster County, Pa., Coroner G. Gary Kirchner said. "This isn't a Romeo-and-Juliet deal. This is far worse than that."

An alert for the girl was issued across the East, and police in Pennsylvania and Indiana investigated reported sightings of the pair as they made their way west in a red Volkswagen Jetta.

Authorities received a report Monday morning of a vehicle matching that description at a truck stop near Fort Wayne. Troopers went to the area, but the car was gone.

Information about the car was broadcast to police statewide and troopers spotted it around midday on I-70 in Belleville, said state police spokesman 1st Sgt. Dave Bursten.

Ludwig got off the interstate led them on a five-mile chase at speeds of 90 to 95 mph on a two-lane state road, police said. Trooper David Cox said Ludwig was "very reckless and very dangerous at that point," meeting vehicles head-on and running them into a ditch.

Bobby Poteet, 36, a former volunteer firefighter who witnessed the final accident said he heard sirens and watched the three cars speed by, before Ludwig's car careened into a tree.

Stephanie Mannon, 16, who worked with Ludwig, said the two had been seeing each other secretly. "Their parents didn't approve of them being together" because of the age difference, she said. "It wasn't because he was a shady character, because he wasn't."

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