Nepal Plane Crash - Which news is true?

Today there was a plane crash in Nepal where a plane belong to Agni Air crashed in Shikhapur in Makwanpur district. Since the news first broke, numerous websites have posted this news, 15200 results to be precise at the time of this posting. However, different news agencies had differing reports on the number of casualties. Below is a snapshot I took from Google guru showing different numbers. 
Readers who have visited this blog previously are also aware of the recent video circulating the web which talks about the Masjid Miracle in Nepal. Given that anybody can post news on the web without verifying the truth behind it, how can one filter out the real news from the fake news? 

When will Google come up with a filter which will disallow incorrect posts?