ALIQUIPPA, Pa. - Someone killed Annie Resusu. Someone slugged the petite blonde with a baseball bat as she was opening the front door of the rickety Hartenbaugh House on the Penn State-Beaver campus.

Whoever that someone was, he or she had better beware, because the youngsters from the Crime Scene Investigation camp have this murder covered.

Nineteen children from all around Western Pennsylvania spent 15 hours last week learning the ABCs of crime scene processing at Penn State-Beaver's new CSI day camp.

After all, they'd seen it done well on episodes of CBS's hit scientific crime-solving dramas "CSI: Crime Scene Investigation," "CSI: Miami" and "CSI: New York."

It's cool, the kids said, how those investigators on TV use their scientific smarts and gritty police know-how to figure out what happened.

On the first day of the program, Ron Schwartz, supervisor of the Penn State University police and a police officer for 32 years, told them straight out: Crime solving on TV is many parts fiction, spiced with bits of reality. Crimes aren't solved in an hour. Some aren't solved at all.

Crime scene investigation is tedious, time-consuming, much like putting the pieces of a jigsaw puzzle together.

Later, the campers ventured across campus to the Hartenbaugh house. They knew they'd find the body of a woman who had worked at a nearby mall. She had cashed two checks on a couple of days earlier, had dinner and went to a movie with friends. She hadn't been seen since a friend dropped her off there that night.

There in the heat of a hot August afternoon, with hands supposed to be in pockets or behind backs and with their imaginations running wild, the campers found Resusu's body - actually Penn State-Beaver's much-used CPR mannequin.

She was lying face up on the porch, head in a pool of blood, obviously dead. Blood was splattered on the house's outside walls and more of what appeared to be blood drops were speckled about the porch's wooden floor.

Each camper cautiously walked up the steps and onto the porch, their eyes scanning Resusu's body like a video camera's lens.

Keen investigators that they'd become, the sleuths sweated their way around the crime scene.

They walked across the grass in a line as if they were dejected soldiers, marching, heads down, attention focused to the ground until someone hollered, "Look, here." Someone found a Louisville slugger bat near a tree, stained with what looked like blood.

More walking, more looking. A man's wallet was in the grass close to the house. That could be tire tracks over there in the mud. No one mentioned the blue ball cap not far away. Near the step at the dilapidated shed were cigarette butts, an empty coffee cup and a chocolate chip cookie wrapper.

Soon, yellow and black police tape surrounded the primary crime scene near the house. The guys marked the outer secondary crime scene around with traffic cones. Several campers spent long minutes outlining Resusu's body with masking tape.

The kids tossed theories. Whoever it was must have been waiting for Resusu.

For the next two afternoons, the campers working as four teams gathered evidence they'd found, wrap it in white paper, place it in a brown paper bag and label the contents.

They listed the evidence on a form and wrote a description of the scene.

Grunt work, gritty and sometimes dirty, it all had to done then and done correctly. This was not the stuff of TV.