off, congregate again and do the things we like to do but there is another public health crisis touching more and more lives this summer that could put dampers on that. >> another shot was just fired. >> he's down. he's down. he's down. >> reporter: this is becoming the sound of the summer in america. after another weekend torn apart by gun violence. incidents from oakland to chicago to minneapolis. just this weekend more than 30 people killed in gun violence so far. according to the gun violence archive. disturbingly, children continue to be caught in the cross fire. in dallas, a gunfight between party goers leaving eight people injured including a 10-year-old and 15-year-old and in detroit thursday, police still investigating a shooting that killed a 2-year-old, one of two unconnected gun violence incidents according to police on freeways in the michigan city last week. >> i don't wish this on my worst