From the quoted MSM link dated 12/19/25:
LOS ANGELES — Nick Reiner was
diagnosed with schizophrenia several years ago and his medication was changed or adjusted at some point before the killings of his parents, according to three sources with direct knowledge of the case.
A sealed medical order was signed Friday by the judge overseeing the case's initial stages. Nick Reiner, 32, is charged with two counts of murder in the deaths of his parents, renowned filmmaker
Rob Reiner, 78, and Michele Singer Reiner, 70.
That sealed order may have to deal with Reiner’s mental health condition and treatment. The sources declined to discuss the contents of the order.
Reiner was being treated for a serious psychiatric disorder at the time of his parents’ murder, the three sources said.