The sheriff’s office says the investigation into the stabbing is closed and no further arrests are expected. According to a news release, the sheriff’s office says it arrested Brian J. Adams Jr., Christopher A. Lane, Thomas J. Hayward; of Endicott, and Noah B. Beauparlant of Endwell. Adams and Lane were charged with two counts of hindering prosecution in the 1st degree, a class D felony. According to the sheriff’s office, Richardson was stabbed by Casteline at a party at 1250 Robinson Hill Rd. An altercation preceded the stabbing. (WBNG) — The Broome County Sheriff’s Office announced Wednesday four 18-year-olds were charged in an investigation into a deadly stabbing of 22-year-old Q-Quan Richardson in the town of Union on Aug. 26. Hayward and Beauparlant were charged with the same crime, but with only one count. The total number of people arrested in the investigation is five. 22-year-old Caleb Casteline was charged with murder on Aug. 26. The sheriff’s office says the four 18-year-olds rendered criminal assistance to Casteline.