Horse dies after crossing the finish line in his first career race in tragic start to Preakness weekend

There's always a lot of excitement about the Preakness Stakes — the second leg of the Triple Crown — but this year's weekend is off to a tragic start.

Laurel Park is hosting this year's Preakness as Pimlico Race Course in Baltimore undergoes renovations, and on Friday, a horse collapsed and died after crossing the finish line in its first career race.

Hit Zero, trained by Brittany Russell, came into the race as the favorite. However, he finished last in the race, which was won by another one of Russell's horses...