Narcotics agents said they got a "well-known Aiken drug dealer" off the streets Monday and have enough evidence that they hope to see him and his alleged accomplices put away for a long time.Richard Blocker Jr., 30, of Vincent Avenue in Aiken, is charged with trafficking cocaine and possession with intent to distribute cocaine within a half-mile of a school.Aiken Public Safety narcotics detective Marty Sawyer said Blocker has a lengthy drug history, adding that his arrest is a "good thing for Aiken."Dujuan T. Lawton, 30, of Outing Club Road in Aiken, is charged with trafficking cocaine and possession with intent to distribute cocaine within a half-mile of a school.Whitney R. Burgess, 19, of Gayle Avenue in Aiken, is charged with trafficking cocaine and possession with intent to distribute cocaine within a half-mile of a school.Although the narcotics investigation culminated this week, it has been ongoing for about a month, Sawyer said.Officers with Aiken Public Safety, North Augusta Public Safety, the Aiken County Sheriff's Office, Drug Enforcement Agency and Solicitors Office were involved in the investigation and the raid Monday afternoon.The officers said they purchased a "large quantity of cocaine" during the undercover investigation and made the arrests on Brown Lane during a planned drug buy.Investigators said the drug deals have been ongoing throughout the City of Aiken and Aiken County.Sawyer said officers seized drugs that may value anywhere from $5,500 to $12,000, depending on how the drugs are broken up and sold. "If this was going to be sold as crack, that could run as much as $10,000 to $12,000," he said.In addition to the drugs, the officers seized money and a truck.Contact Karen Daily at kdaily@aikenstandard.com.