Dec. 16 (UPI) -- Nick Reiner, son of slain director Rob Reiner and his wife Michele Singer Reiner, was not medically cleared to appear in court Tuesday.

Nick Reiner, 32, is accused of stabbing his parents to death Sunday in the primary bedroom of their home in Brentwood, Calif.

"Hopefully he'll be cleared tomorrow and we can get him here," Nick Reiner's attorney Alan Jackson told reporters outside of the courthouse in Los Angeles. Jackson didn't say what the medical issue was, but only said it was "procedural."

Nick Reiner, 32, was arrested Monday on suspicion of killing his parents. He hasn't been charged yet but is being held without bail.

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