Nick Reiner, the son of Rob and Michele Reiner, was taken into custody Sunday night and is being held on $4 million bail, online jail records show.

Authorities are investigating an “apparent homicide” at Reiner’s home in Los Angeles after police, firefighters and paramedics were called to the property on Sunday, it has been reported.

Law enforcement sources have said the couple's bodies were discovered with what appeared to be knife wounds.