Dawson and Henley Arrested in Hannibal After Narcotics InvestigationsDawson and Henley Arrested in Hannibal After Narcotics InvestigationsTwo additional suspects were served with arrest warrants resulting from investigations conducted by detectives assigned to the Hannibal Police Department Narcotics Unit.Townsquare Media Quincy-HannibalTownsquare Media Quincy-Hannibal