Chris Evans sent a sweet video message to a 6-year-old boy named Bridger, who recently saved his little sister from a dog attack.“I read your story and saw what you did. Now, I’m sure you’ve heard a lot of this over the last couple days, but let be the next one to tell you, pal, you’re a hero,” the 39-year-old Captain America star said in the video, shared by Bridger’s aunt Nicole Noel Walker on Wednesday, July 15, via Instagram.