Former Boyfriend Accused of Killing Cassandra Negrete and Her Mother

Cassandra Negrete was a 23 psychology major at the University of South Carolina Aiken. Media reports describe her as a straight A student who made the President’s List at the university in the Spring, and also the recipient of a grant to begin research related to her field.And she appears to be the target in this awful double homicide. The alleged perpetrator, Guillermo Diaz Jr. was arrested after he called aiken county sheriffs to report what he had done. The incident report which was posted on-line relates the full narrative from Sheriff’s office deputies: