Lady Gaga is offering a $500,000 reward for information leading to the arrest of the suspects who shot her dog walker. Exclusive video obtained by Inside Edition shows paramedics working to save the dog walker’s life. Lady Gaga was away in Italy shooting a movie when it happened. Investigators are now canvassing the Los Angeles neighborhood looking for information. The shooting is the latest case in frightening trend targeting pricey french bulldogs, which can sell for as much as $8,000. #InsideEdition