Backgrid USA Milo Ventimiglia has been photographed out for the first time following the death of his ex-girlfriend Hayden Panettiere. The 49-year-old This Is Us actor fueled up his truck at a local gas station as he ran a few errands on Monday afternoon (August 17) in Los Angeles. For his outing, Milo sported a tan T-shirt, jeans, and boots. The night before, it was announced that Milo‘s ex-girlfriend Hayden had passed away at the age of 36. If…