A best man speech that was given by an Iowa groom’s autistic brother left the wedding guests in tears as well as stitches. Sam Waldron, 23, announced to a room of 170 guests how his brother Jonah, 27, is his “hero” and has “never looked down” on him. A tear-jerking video of the speech, which was later uploaded on Jonah’s Tik Tok account on July 20, shows Sam saying that he is usually scared of interacting with people because of autism, but through the years, Jonah has reminded him “that being different is a real strength, not a weakness.” The crowd was filled with both tears and laughter when Sam said Jonah’s new wife, Madison Waldron, 25, has “all the makings of a great sister,” and that she’s married the “second most handsome Waldron.” “I was really nervous before the speech. Before I stood up, I wasn’t sure if everyone …