Dan previously co-founded and directed the Center to Prevent Youth Violence ( CPYV ) ( formerly known as PAX ) . He became an activist on the issue of gun violence when his brother was shot and severely wounded in the 1997 Empire State Building shooting . Prior to his activism on gun violence , Dan was a partner at JWT Advertising Agency in New York City . There he managed accounts such as Kodak , Lipton and Warner Lambert
1997 Empire State Building shooting
1997 Empire State Building shooting
Dan Gross (activist)