Victims of a number of recent heists on the Chicago Transit Authority's Pink Line say one of their robbers is so tall his head almost touched the top of the train.

In the eight days between Dec. 10 and Dec. 18, there were four robberies, police said.

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Each time, two men would grab someone's phone just as the train approached a station, jump out as the doors closed and run away.

The men were described as being between the ages of 20 and 30 years old. One of them was about six feet tall. The other man, witnesses said, was more than seven feet tall.