Crash in the Hudson - Again!

I happened to be sitting outside on the NJ side of the Hudson from about 11:30 AM till just after noon. Close to noon I looked up because I noticed a helicopter veering and making strange movements over the river - including quick, jerky movements - and flying rather low. The helicopter then made a sharp turn and headed southbound (which is where it eventually crashed further down the river). Not sure if the helicopter may have been suffering from some problems before colliding with the plane, but I can't help thinking of these strange movements that apparently took place right before ... very, very sad.