Police Say 18-Year-Old Boyfriend Faces Homicide Charge While His Mother Is Accused of Helping Conceal Evidence
WASHINGTON COUNTY, Pennsylvania — An 18-year-old Pennsylvania man and his mother are facing multiple criminal charges following the death of a college student whose body was discovered inside her vehicle in southwestern Pennsylvania.
Authorities say Royce Moser, 18, has been charged with homicide in connection with the death of Karoline Heintz, a student at PennWest California University. Investigators have also accused Moser’s mother, Rachel Moser, of assisting in efforts to conceal evidence after the killing.
Police released body-camera footage showing officers discovering Heintz’s body inside her vehicle after she was reported missing.
Police Release Body-Camera Footage
The video, recorded by an officer from the California Borough Police Department, shows police approaching Heintz’s vehicle in a parking area during the nighttime search.
An officer shines a flashlight into the vehicle before urgently requesting emergency medical assistance after discovering an unresponsive woman inside.
Police then broke windows to enter the vehicle as emergency responders were called to the scene.
Investigators later confirmed that the victim was Karoline Heintz, who had failed to return to her university campus.
Authorities Detail Allegations Against the Teen
According to court documents, investigators allege that Moser became involved in an argument or confrontation with Heintz while they were sitting inside her vehicle at his residence.
Police said Moser later admitted to investigators that he retrieved a knife from inside the home before allegedly attacking Heintz.
Court records state that Moser made claims regarding his mental state during the incident. Those claims are part of the allegations described in the criminal complaint and have not been established as fact in court.
Investigators allege that after the attack, Heintz’s body was placed inside the rear section of her vehicle.
Vehicle Tracking Device Helped Police Locate Victim
Authorities began searching for Heintz after her father contacted police when she failed to return to campus.
According to investigators, a tracking device associated with the vehicle indicated that it was located in a parking area near PennWest California University.
Police located the vehicle and subsequently discovered Heintz’s body inside.
Investigators said location data also showed that the vehicle had previously been near Moser’s residence, leading police to focus their investigation on the teenager.
Mother Accused of Helping Conceal Evidence
Rachel Moser is accused of helping her son after the alleged killing.
According to investigators, she allegedly instructed him to wash and change his clothing. Police also allege that evidence was placed in a washing machine.
Authorities further claim that she attempted to dispose of a knife believed to be connected to the case by placing it inside a garbage bag.
Investigators later recovered the knife after obtaining a search warrant, according to court documents.
Multiple Charges Filed
Royce Moser faces a homicide charge in connection with Heintz’s death.
Both Royce Moser and Rachel Moser have also been charged with offenses including tampering with evidence, abuse of a corpse and obstruction of justice, according to authorities.
Rachel Moser additionally faces charges related to allegedly helping her son avoid apprehension and the alleged criminal use of a communication device.
Both defendants are being held without bail at the Washington County jail. Their next scheduled court appearance is a formal arraignment set for October 13.
Family Calls for Privacy and Justice
Heintz’s family has asked the public to respect their privacy as they mourn her death.
In a statement, the family described the loss as devastating for relatives, friends and the wider community.
They remembered Karoline as a kind and intelligent young woman and said they want justice as the criminal case moves forward.
The investigation remains ongoing, and the charges against the defendants are allegations. Both are presumed innocent unless proven guilty in court.
