maddi scott is here. knee her son george. an amazing person.ery handsome and charismatic, always supportive of other people, one of the most amazing people you ever want to meet. these are the people we are losing because of guns. these are the people that are no longer with us because of guns. then what happens as a result of that, the pain, the pain, the grief, the loss. it is five years since sandy hook and since then over 500,000 people have been killed or injured because of guns. we have got to do better. i want to thank united players. they have been consistent in this fight. they have been consistent. (applause) for over six years they are hosting these gun buy backs and collected hundreds of guns and got them off the street. think about the difference one gun can make in saving not just one life but several lives. we can't be satisfied. i use this quote last time from the late doctor martin luther king when i spoke at saint dominics when we commemorated the sandy hook tragedy that happened. i said let us not be satisfied. let us not be

. >> reporter: mother's from san francisco like maddie scott share what it was like to lose their own child and pledged to take a stand against gun violence. >> i have to tell my grandson, your dad won't be coming for your birthday. your dad has been shot and killed. the scream i heard on that phone 20 years ago is a scream that gets me up off of my bed every single day. >> reporter: while these people know better than anyone that there is no quick fix to preventing gun violence, they say being here is a start. >> we can stop everyone but we can make a difference. if it is your child, that difference is the whole world. >> reporter: you saw congresswoman nancy pelosi was here today, reminding us that the concealed carry permit passed in washington recently, much to her dismay. that means that any carry concealed permits that were issued in any state is valid in every state, regardless of where that permit was issued. in san francisco, jackie ward, kpix 5. >>> a glimmer of hope for a breakthrough in the crippling citywide strike in oakland. both sides say they would be willing to enter