An emotional father who lost his six-year-old son in the Newtown school shooting has been heckled by pro-gun activists as he testified at a local hearing on firearm control.  

Neil Heslin, whose son Jesse was killed in last month's massacre at Sandy Hook Elementary, questioned the need for any civilian to own semiautomatic, military-style weapon at the state legislative subcommittee hearing in Hartford Connecticut on Monday.

But he was shouted down by members of the audience who shouted 'The Second Amendment' as he spoke.