Was Jennifer Hudson's nephew murdered?
According to media reports, yes, he was. try Google for details.
Yes. There are pictures of the boy on the internet where he's photographed together with Bradley Cooper, Jennifer herself and Josh Hutcherson (this would be the most recent one - the child was still an infant when he was pictured with Bradley Cooper, presumably on the set of Silver Linings Playbook, which would make his year of birth 2011)