beirut tonight. reporter: one year after the devastating beirut port explosion, the lebanese are fighting back. justice has to be served. this regime has to go down. reporter: there has been no investigation, no accountability, and for the victims, no justice. you see the president is going back. they re going towards the parliament. they are begging. they are throwing stones. they are trying to get in because that is who they blame for the beirut blast. reporter: protests today turning violent. at least six injured. the explosion last year struck st. george s hospital. nurse pamela grabbed three preemie babies out of their incubators. this picture going viral, she ran three miles to the next hospital. a year later, all three are thriving. i see the pain every day, but i have to be strong for these babies, because i rescued them. i ve become more strong.