OGLESBY – The Tri-County Drug Enforcement Narcotics Team say an Oglesby man was arrested Wednesday on Heroin charges. Oglesby Police around 10 PM took 36-year-old Daniel S. Margis into custody on a warrant for three counts of unlawful delivery of a controlled substance – heroin. The charges stem from a several month investigation into drug sales in the area by the Tri-DENT drug task force. Authorities say Margis delivered purported heroin to agents on three occasions. He was taken to the LaSalle County Jail where he is being held on $1,000,000 bond.