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Harrowing surveillance footage captured the moment when a dog walker for pop singer Lady Gaga was shot and two of her French bulldogs stolen.

The dog walker, identified by WENN.com Ryan Fischer, 30, was caring for the singer's beloved dogs while she is away in Rome, Italy.

The video, obtained by TMZ, shows a man walking three dogs on a sidewalk late Wednesday night.

Then a white sedan, possibly a Nissan Altima or Sentra, pulled up alongside him and two men exited the backseat.

One suspect is heard yelling "You know what this is!" and "Give it up!" as Fischer screamed for help.

One of the dogs escaped while Fischer fought with the suspects who grabbed the other two dogs. One of the thugs shot Fischer in the chest before the suspects sped away with the two dogs.

Fischer fell to the ground, screaming "Help me! I've been shot!"

Police confirmed the dog walker was shot once in the chest -- not four times as was previously reported.

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Lady Gaga's team confirmed to PEOPLE that Gaga "wanted" the surveillance video "to be seen to catch the shooter and recover her dogs."

She offered $500,000 for the safe return of her pets.

Gaga is in Italy prepping to film her new movie "Gucci." A source told "Entertainment Tonight" that she is "beside herself" and "is horrified that this happened."

"Her dogs are her babies and she is completely devastated and sickened by this," the source said, adding that the singer feels "helpless" because she is far away.

CAUTION: This video contains graphic violence and may be disturbing to some viewers.