An industrious teen learns there's a fine line between friends and killers.
A presumed suicide shifts to foul play when a second dead body turns up.
A Seattle woman is brutally murdered close to a homeless encampment.
A depraved killer snuffs out the life of a promising young schoolteacher.
A dead teen bound in chains is found drifting miles off the Jersey shore.
A suspicious 911 call leads to a student pinned to the floor with a knife.
A young mother is viciously gunned down on Virginia's Chincoteague Island.
A slain woman's disabled child may hold the key to solve a double murder.
Police find the battered body of a computer programmer in his bathtub.
A gruesome attack on a couple sets off a nationwide hunt for the culprit.