reporter: as a result of this strategy, oakland has seen a 20% decrease in homicides. for 27-year-old clarence ford. a mentee of michael mcbride's for the last decade. >> i try to lead by example. and like let people know that, you know, change is possible. i had my hardships. it was difficult. but it's possible. [ applause ] >> reporter: tonight, president obama is back at it, headlining cnn's "guns in america" town hall. >> there's nothing else in our lives that we purchase where we don't try to make it a little safer if we can. >> reporter: and in the audience families who have lost loved ones to gun violence. >> the bottom line is is that it doesn't matter what the reason, it doesn't matter what the color. it doesn't matter what the economic, socioeconomic status is, there's too many people dying in this country at the end of a gun and there's too little being done to change it. >> reporter: the mayor did admit to us there is still no easy answer. women looking for love? and later, you never want to have to part with your pet. so if you could, would you clone your furry friend? get hungry just

or ford or obama, most worked in a presidential administration, i don't think you want third parties deciding how to interpret our laws. >> this latest era that gabe defines really start with clarence thomas who was young was ideologic could be expected to be around for a long time on the bench ? >> well, i do think it started about that time. and clearly, it's become the trend . i think in the past 30 years or so justices started to search 20 years or so. president saying i think it's good thing to nominate somebody who's only he going to be on the court for a decade or so, the whole system is structured to incentivize someone who can stay on for a long time. i can't blame the president for wanting to do it. i can't blame senators who are under pressure from special interest groups and these sorts of things to want to nominate somebody who is going to comport with their long term vision for america and for for the courts. whether that is good structurally is another somewhere question. what i'm hearing gabe say about the age raises a good point about the constitution which provides no mechanism for a supreme court justice who is incapacitated in some way say in a vegetative state