SHEBOYGAN, WI (WHBL) - A Sheboygan drug dealer has been sentenced to prison. 29 year old Daniel Jackson had been under surveillance since last year and had sold heroin and cocaine to an undercover officer in the city of Sheboygan last December, February and March. Officers then executed a search warrant at his apartment at 1133 Broadway last April and found marijuana and cocaine. A drug-sniffing K-9 used in the search located the cocaine hidden behind the siding at the rear of the building. Jackson was sentenced Tuesday by Judge L. Edward Stengel to 6 years in prison to be followed by 10 years on extended supervision.