FAIRFIELD - The Fairfield woman charged with manslaughter following the death of a 4-month-old at her day care pleaded not guilty Tuesday morning.  

Carol Cardillo is accused of giving Adam Seagull a lethal dose of an antihistamine found in popular over-the-counter drugs like Benadryl.

Court documents have shown that Cardillo had purchased 90 bottles of Benadryl over the past 3 ½ years.

Investigators initially thought Seagull died from SIDS.

Cardillo is due back in court Oct. 25.