Barry and Honey Sherman were found strangled five years ago and their murders still remain unsolved.
Nasim Aghdam's father told a reporter he'd called police about her anger at the company.
Facebook disabled the suspect's account within 23 minutes of receiving the first report about the murder video, but admitted that's not good enough.
The so-called 'Angel of Death' worked under Dennis C. Miller for years.
The Sheriff's Office said officials became suspicious of the suit, filed in the name of murder suspect Jason Dalton, after seeing the online filing.
Laura Spaulding's act of kindness in 2005 led her to a revelation about crime-scene cleanup.