Authorities say four people found slain in a small Virginia college town were killed by blows to the head, and they expect to file additional charges against an aspiring California rapper suspected of killing them.

Twenty-year-old Richard Alden Samuel McCroskey III is already charged with killing one of the four, Mark Niederbrock, a pastor at a Presbyterian church in central Virginia.

At a news conference Tuesday in Farmville, the other victims were identified as 53-year-old Longwood University professor Debra Kelley; Emma Niederbrock, the 16-year-old daughter of Kelley and Mark Niederbrock; and Melanie Wells, an 18-year-old from West Virginia.

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