Are gun laws tough enough?
Two statements were read at St Michael's Church in Lamplugh, the village where one of Bird's brothers, his twin, was found dead.
Later hundreds of people gathered in Seascale, the village where Bird killed three people, for the first of two memorial services.
On Thursday Home Secretary Theresa May told MPs that lessons would be learnt in the wake of the shootings. She added that the British gun laws are already among the toughest in the world. Mr Cameron said there should not be a "knee-jerk reaction" to changing gun ownership laws.
Could tighter gun laws have prevented the Cumbria shootings? Do the reasons for gun ownership need to be revised? Should people be assessed before being permitted to own a gun? What needs to happen now?
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