more heartbreak as the two victims of friday s terrorist attack on london bridge were remembered and new video and eyewitness accounts emerge nbc s bill neely is there tonight. reporter: grief at vigils today the girlfriend of one of those murdered breaking down. the two victims of friday s rampage had tried to help the man who killed them, hoping to rehabilitate convicted terrorist usman khan he might have killed more, but a group of heroes using a fire extinguisher and a whale tusk tackled him before police opened fire a california professor saw the killer strike. i saw people die. i saw things that i m never going to be able to unsee. reporter: the killer s own lawyer says he fo that he d reformed even a decade ago. i ain t no terrorist. reporter: but he was convicted of plotting to bomb the u.s. embassy, then released early britain s leader now using this as an election weapon.