TV star Jack Osbourne, the son of rocker Ozzy Osbourne, helped catch an alleged mugger in London by wrestling the man to the ground, a source says.
The source said Osbourne immediately chased the unidentified man and tackled him, enabling other citizens to help him restrain the suspect until police arrived.
"He was amazing. He ran after the mugger like a man possessed -- a real hero," the source said.
The 22-year-old Osbourne told the News of the World his impromptu crime-fighting decision was merely the "right thing to do" in the circumstances, the Telegraph said.