The police union lawyer for that area has done some video interviews. He claims that Guerna had been part of a dope hijacker crew and the warrants were after evidence that Guerna had been impersonating a law enforcement officer during false raids on dope world people.
OK, so part of this reveals where the "information" was coming from, it was coming from dopers who reported it to the police, allegedly.
Now on another note, you watch the video of the lawyer talking and if you have had any lessons on spotting both the tics associated with dope users, and liars, the lawyer exhibits both. One is the touching of the face shortly before and sometimes after telling a lie. The other thing, the part of his face he touches appears to be a habitual squeezing of a part of the sinus cavity where cocaine residue tends to collect. Frequent powder cocaine users are aware of the spot in the sinus cavity where the drug tends to collect, and will have various little actions they take to get a "hit of the reserve" throughout the day when they are not "high". In person, it almost like a sniffle, or as in the case with the lawyer, he presses a part of the sinus then quickly inhales.
It is basically a confidence building thing, as the drug is in common use among lawyers in order to build self confidence, and one of the reasons it is particularly popular among the classes of people whose professions "require" them to lie with a high degree of self confidence.
I personally think some of this might go hand in hand with who Guerna's crew may have stepped on if they had been playing vigilante. They stepped on someone well connected and that well connected party called in the hit which was carried out by the SWAT unit. Of course, you are talking overconfident dope users calling the shots on the raid anyway, so who knows, maybe it just made them feel good to put a hit out on some square who would not play ball for them.
I am also going to have to throw a good guess out there that although the police involved are publicly showing a united front on this, the release of the video from someone's helmet cam showing facts which are obviously inconsistent with statements and reports is also showing that someone somewhere has decided to throw a little more truth out there and is willing to led the dice fall where they fall.