. >> allison wyatt, age 6. >> reporter: six months later, the loss is still incomprehensible. >> gracie mcdonald, age 7. >> reporter: 20 first graders, 6 educators murdered at sandy hook elementary. the families of the victims are now fighting against fading memories. they're using the anniversary to renew a push for new gun control laws. >> we're not going away. this heartbreak that i carry, this life sentence that i have, no one should ever bear this burden. >> reporter: the families' emotional pleas have been unable to move congress. a senate bill to expand background checks stalled earlier this year. proposed bans on assault-style weapons and high-capacity clips are off the table. >> our hearts are broken. our spirit is not. >> reporter: top lawmakers say they are gearing up for another push to expand background checks. the group mayors against illegal guns, today joins the campaign with this bus, painted with the names of victims of gun violence. still, opposition remains strong. the road ahead is long. >> the writing is on the wall. background checks will pass the united states se

allison wyatt, age 6., age 7, gracie macdonell, age 7, victoria soto, age 27. rachel, age 29, loren, age 30, anne-marie murphy, age 52, mary, age 56, all killed in the sandy hook massacre. now speaking, my sister, jillian soto. >> on friday, june 14, it will mark six months since my older sister was brutally murdered in her first grade classroom. my sister vittori went to school that day to teach her first -- victoria went to school that day to teach her first graders and was faced with the situation that she could have never imagine. a situation that most people will never have to face. around 9:35 a.m., an armed man walked into sandy hook elementary school and opened fire and kill took 26 people within the school. 20 of the people were 6 and 7- year-olds, and six educators. one of those educators was my older sister. i am here today to remind congress what happened to my family, to remind them of what keeps happening in america. 5000 more americans have died due to gun violence since december 14. and the

allison wyatt, age 6. joseph deane, a seven, case, 7, 7, gracie macdonell, age victoria soto, age 27. 30,el, age 29, loren, age mary,arie murphy, age 52, age 56, all killed in the sandy hook massacre. now speaking, my sister, jillian soto. >> on friday, june 14, it will mark six months since my older sister was brutally murdered in her first grade classroom. my sister vittori went to school that day to teach her first graders and was faced with the situation that she could have never imagine. a situation that most people will never have to face. a.m., an armed man walked into sandy hook and openedschool and kill took 26 people within the school. were 6 and 7-le year-olds, and six educators. one of those educators was my older sister. i am here today to remind congress what happened to my family, to remind them of what keeps happening in america. 5000 more americans have died due to gun violence since december 14. and there still hasn't been any federal action to protect us from gone violence. just last wee