I'm truly inclined to believe the MSM above was a misinterpretation between the neighbor and ABC7 reporter, and where this probably would have best been reported as
'a daughter with roommates' lived in the other house (across the street).
IME, parents and/or older neighbors typically refer to young professionals as "kids."
Also, social media of the victims and family is open, and there's no evidence of children/grandchildren attributed to RR!
Other MSM generally reported that the daughter (RR) found the parents deceased after being alerted by the masseuse that there was no answer when she arrived at the residence for a scheduled appointment, and her roommate called 911 to report the horror. (Also, nothing here prevents a roommate from having kids)! JMO
NYTimes by MSN
After her parents failed to open the gate to their home, Romy arrived at the scene with a roommate and went inside to check on her mom and dad before finding Rob's body, a source close to the Reiner family revealed to the news outlet.
Romy's roommate, who was waiting outside of the home, was reportedly the one to call 911.