Two online fundraisers for family of slain officer Didarul Islam generate nearly $500,000

A GoFundMe on behalf of 47th Precinct Officer Didarul Islam, who was killed in the Midtown Manhattan mass shooting on July 28, has raised nearly $80,000 to benefit his wife and three sons left behind.  Islam, 36, had been working off-duty uniformed security detail at the 345 Park Ave. office building when 27-year-old Shane…