I remember that article. The following also came from the article:
During the course of the investigation,
police have made unrelated arrests, Leazenby pointed out. If, for example, police find someone they are interviewing is wanted on a warrant, officers can't ignore that. So the person goes to jail on unrelated charges. A probation hold can keep a person locked up for 15 days without charges, Leazenby said.
This was less than 2 months after the murders. I wonder what impact this might have on a tipster who is involved in unrelated criminal activity. I know they say the tips can be anonymous, but such a person might not trust that statement. The unidentified vehicle at the abandoned CPS building - what if they are just another unidentified witness and have an outstanding warrant? They may see more incentive to NOT come forward than to contact LE.