A man with a gunshot wound showed up at his aunt's Miami home Sunday morning, knocked on the door and collapsed, Miami police confirmed.
But where he came from was a mystery, said Miami Police spokeswoman Frederica Burden.
"There was no blood trail," she said.
Burden said there had been no reports of a shooting near the apartment at 840 NW 70th St.
Miami Herald news partner CBS4 reported that Miami-Dade police confirmed there was a shooting reported in the area. The station also said the victim was a teenager.