Authorities arrested the car's driver, Jason Richard Budrow, 30, a registered sex offender and self-described Satanist with "666" tattooed above his eyebrow.
Officials said Dalton had been dating Budrow.
Investigators said Budrow, who said he was involved in pimping and dealing drugs, admitted strangling Dalton because he thought she was a police informant.
Budrow thought Dalton was going to reveal the names of "important people."
Budrow is being held without bail. Arraignment is set for Dec. 1.
The Associated Press contributed to this report.