Certainly great advice to walk in "pairs" since we have 3 sets of double homicides.. the public does have a right to be informed so they can take precautions for their own safety. Serial killers aren't typical predators and it's a grave mistake to think otherwise. Some have been Boy Scout leaders and community collaborators.. in this case their wasn't Jack of shit for a lead for investigators and the tiny evidence they did have which was enough to inform the public there is a serial killer was kept silent. Most with common sense knew this is a serial event and perhaps even broader than many realize. I bet you $100 he was sitting right there at the Valley of Moon public hearing.
No registered address since 2011 was it? Hasn't applied for a PFD since when? This is a person covering their tracks. 
Worse case, oh which I'm sure the FBI is investigating and my gut tells me, this person is networked.