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Winthrop drug investigation leads to eight arrests

A three-month investigation, aimed at curbing quality-of-life offenses on the streets of Winthrop, ended Wednesday with the arrest of eight accused drug dealers and two additional people with open warrants, prosecutors said.

From September to December, undercover detectives repeatedly made purchases of cocaine, heroin, marijuana, and prescription pills from eight dealers, deals that were documented by police and served as the basis of the arrests, Suffolk District Attorney Daniel F. Conley’s office said in a statement.

“This was more than just a drug sweep,” Winthrop Police Chief Terence Delehanty said in a statement. “Nearly every one of these offenders made statements to undercover investigators about violent crimes they’d previously committed or planned to commit in the future.”


The investigation was carried out by State and Winthrop Police along with prosecutors in Conley’s office.

The eight defendants were arraigned Wednesday in East Boston District Court, prosecutors said. Each had a not-guilty plea entered on their behalf.

Facing drug charges were: Douglas Bitopoulos, 29; Charles Butler, 22; April Colvario, 38; Brian Donahue, 32; Francis Forsyth, 40; Alexander Madden, 26; Eric Monahan, 35; and Michael Murphy, 32. Forsyth also faced other charges, including assault and battery, and Monahan faced larceny charges.

State Police reviewed cases of open warrants and arrested two people not part of the drug sweep, prosecutors said.

Thomas Kelley, 51, was arrested on a warrant for assault and battery out of Cambridge and Tatiana Yeakley, 25, was arrested on a warrant out of Burlington, prosecutors said.

Melissa Hanson can be reached at melissa.hanson@globe.com. Follow her on Twitter @ Melissa__ Hanson.