Seneca is known for the power plant and shipyards, not heroin dealers. Though investigators with TRIDENT say they arrested a man and a woman on drugs charges after an undercover deal Tuesday.
Michael Porter of Chicago and Sabrina Bronzell of Seneca are accused of selling heroin to someone working with the police at a business along Route 6.
Porter and Bronzell were charged with unlawful delivery of a controlled substance and were being held in the La Salle County Jail.