You may remember him from his early reporting questioning the claim by the Israeli government that the terrorists responsible for the August 18 attacks near Eilat came from Gaza. Gurvitz suggested that the terrorists actually were Egyptian and came from the Sinai. Oh and by the way, in today's Jerusalem Post, the IDF confirms that Gurvitz was right. Not saying there's a connection here. Just saying for the time being we don't know.
You can read his bio and his blog here.