Canadian tourist GARY MARTIN tackles BLACK mugger Mag Mile: 'It's what I should do' - It' what every whitie should do!

Gary Martin stands at the spot where he tackled a purse-snatcher. (Phil Velasquez, Chicago Tribune)

Here's what firefighter Gary Martin did on his vacation to Chicago: He chased down a purse-snatcher who robbed an elderly woman on North Michigan Avenue and pinned him to the ground.

CLICK FOR MORE

• July 21: Welcome to Chicago -- give me that iPhone

• June 3: Off-duty cop thwarts iPhone robbery