According to former pilot, Dietz, who flew that helicopter, Island Express had excellent maintenance record. He said it must have been weather related.
Yeah, well everybody is talking about "fog", but the video shows a catastrophic mechanical failure involving the tail rotor. So I wouldn't want to have been the last mechanic or company to have signed the maintenance logs. I remember what happened to Bill Simpson & Simpson Racing when Dale Earnhardt hit the wall at Daytona. He pretty much had to sit there an take the heat for NASCAR and Earnhardt's own decisions to modify his seats & harnesses.