is an offshoot breaking tonight, retired transit cops shot and killed with his own gun during a confrontation outside of a pizzeria in brooklyn. the retired officer was trying to defend an elderly man who is reportedly being harassed by the suspect. the retired cop in the suspect got into a scuffle. the suspect are the retired man's gun, shooting him in the chest and killing him. we will continue to monitor that developing story. meanwhile, the nypd is asking for the public's help tonight releasing video of this suspect, wanted in the shooting death of a 10-year-old boy in queens on saturday night. correspondent laura ingle is moderating soaring crime across the u.s. tonight. good evening, laura. >> hi, shannon. another weekend has brought more violence to cities big and small. coast-to-coast. devastating families who have lost loved ones to gun violence and again, some of the victims are young children.