More information on the latest SWAT raids gone wrong

Sebastian had this with this link to Balko on this raid. And it does not look good. It looks like they set up the raid based solely on the statement of the informant with no investigation to see if the information was good. Looked a bit more recently and he's got this:
That’s not the case with Frederick. It took five days just to reveal that the police found drugs. We’ve yet to be told what quantity of drugs police found in his home. We do know that they didn’t find the major grow operation described in the warrant. It’s also probably time to start inquiring about the informant whose tip led to the raid. Who is he? Did he have a grudge against Frederick? What exactly did he see that made him think this was a major operation? Does he know enough about marijuana to know what a major grow operation would look like?

Here’s another scary thought: Frederick says one reason he was frightened was that three days prior to the shooting, someone had broken into his house, rummaged through his belongings, but didn’t take anything. The search warrant says that the confidential informant was in Frederick’s home within 72 hours of the raid. Could it be that the informant was the one who broke into Frederick’s house? Might be worth asking Frederick who was in his home in the previous week.

and this:
He told me a couple of interesting things that didn’t appear in the paper’s interview with Frederick. First, Frederick told the reporter that as the police were taking him out of the house in handcuffs, he told them he was sorry, and that he was scared because his house had been burglarized earlier in the week. According to the reporter, Frederick says the police arresting him then told him they not only knew about the burglary, they knew who had done it. Neither the reporter nor Frederick made the connection at the time that the person who broke in could well also be the informant.
...
More interesting, though, are the comments from neighbors who not only also vouch for Frederick’s credibility, they also say they never heard the announcement the Chesapeake Police Department insists was given before officers forced entry. One was outside at the time of the raid. That’s not to say there was no announcement. It is to say that if someone standing outside didn’t hear it, how could we expect Frederick, who was inside and in bed, to hear it?
among other things.

At this point it looks like the end result of this mess is that an unnecessary 'dynamic entry' was done on lousy reason, with no prior investigation of the information, on the home of a gardener who had a little grass for personal use. Who apparently had NO marijuana growing at all, let alone the 'sophisticated grow operation' the informant claimed. And a lot of other very flaky information as to who did what. Which led the the completely unnecessary raid and the death of a police officer.

Damn.