Suburban firefighter dies while performing CPR

MATTESON, Ill. – A firefighter in south suburban Matteson died while performing CPR on a shopper at Wal-Mart.

The firefighter, identified as 49-year-old Mark Zielinski, was called to the store at 21410 S. Cicero Avenue in Matteson Friday afternoon for a medical emergency.

He had been with the Matteson Fire Department for 13 years, after spending many years working for the fire department in Harvey.