ROSEMEAD >> Authorities recently dropped the case against a mother accused of fatally shooting her 17-year-old son at a Rosemead motel because the 50-year-old suspect died.

Sheriff’s homicide detectives said Rosemead resident Lai Hang shot her son, George, while he slept in their room at the Valley Hotel, 8711 Valley Blvd., on July 27, 2015.

Ricardo Santiago, spokesman for the Los Angeles County District Attorney’s Office, said George Hang was schizophrenic and Lai Hang had been diagnosed with stage four cancer.

“The defendant (Lai Hang) believed there was no one who would be able to take care of her son when she passed away,” he said.

Lai Hang, died of cancer at Los Angeles County USC Medical Center on Dec. 11. Santiago didn’t know what type of cancer she had. Hang told investigators two years ago it was brain cancer.

Santiago said the murder case was dismissed last Tuesday.

Mother and son checked in at the Valley Hotel on July 26, 2015. The next morning, the sheriff’s Temple station received a call of a possible gunshot victim at the motel. Deputies found the dead teen and recovered a handgun.

George Hang died from a gunshot wound to the chest, according to the coroner’s office.