He died earlier Saturday at his home in Los Angeles.

Richard Simmons died on July 13 at age 76. The fitness expert’s cause of death is being investigated by the medical examiner’s office.

It’s not the case closed with Richard Simmons and his untimely death. The Los Angeles Police Department is investigating the cause of his passing. The police confirmed this news to PEOPLE. All of this comes after no foul play was suspected after the fitness guru died on Saturday at the age of 76.