united nations on manhattan's east side. according to law enforcement officials, mr. gilbert was angry because his father wanted to cut his son's weekly allowance from $600 a week to $400 a week. joining me now is the chief investigator reporter for wnbc in new york. jonathan, a lot of quickly developing information, and i believe you have late information now about the gun that was used. >> right. we're learning the gun he attained was in ohio. that it was purchased in a gun store there. he himself purchased it or was done through a straw donor. he did not have a license for that gun to own it in new york. >> whatn't a the accused. he's a 30-year-old graduate of princeton. and hasn't worked in a while. did he ever work? >> we're told he did work to at