'Sinatra' once belonged to 16-year-old Zion Willis who died in a gun accident.
Somehow, 'Sinatra' ended up in a Florida neighborhood, where the Verrill family took him in.
The family connected with the Willis' through social media, and confirmed the dog's identity.
'Sinatra' will return home on Monday, after weather delayed the original Sunday date.
But it is still a mystery how the dog traveled 1,200 miles from Brooklyn to Seffner, which is near Tampa.
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