LOS ANGELES (Associated Press) — A Los Angeles County grand jury has indicted Nick Reiner on murder charges in the killings of his parents, actor Rob Reiner and Michele Singer Reiner, and adds the allegation that he was lying in wait before attacking them.

The grand jury, which had been meeting in secret, returned the indictment on July 20, and it was unsealed Wednesday, when Nick Reiner entered a not guilty plea.