The Los Angeles Police Department has launched an internal investigation into the actions of several officers who responded to a report of a screaming woman at a Westwood apartment complex where a UCLA student was found dead later that morning.

LAPD Cmdr. Andrew Smith said Friday that four officers conducted an investigation at the building after a 911 call and left sometime before a fire was reported and Andrea DelVesco was found fatally stabbed.

Prosecutors allege that her killer set fire to her apartment in an attempt to destroy evidence.

More than two dozen firefighters responded to the blaze that engulfed the apartment on Roebling Avenue shortly after 7 a.m. on Sept. 21. Inside the smoked-filled home, firefighters found the 21-year-old student’s body. She had been stabbed multiple times.

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