Question

Based on your background information is it possible someone would had a motive to kill the boy king

Answer 1

If you're talking about King tutankhamun then yes there were several people who had motive one would be his grand vizier who his motive would have been the throne had he killed him his sister who would have also been granted the throne had he died and even his generals had a motive had he died they would have been given temporary control of the country