Norwalk cold case unit using DNA to close unsolved crimes
Norwalk's cold case unit is using DNA technology to make convictions in cases that could be decades old.
The unit's most recent conviction led to the arrest of Osvaldo Muniz in a kidnapping committed more than a quarter-century ago.
Lt. Art Weisgerber, head of the unit, says advances in DNA technology make it possible to give victims some closure.
Weisgerber says the sample size...