Konstantinos Diamantis was a powerful state official until late October, 2021. Here’s a timeline of events in his story.
Kosta Diamantis Saga
CT Mirror’s continuing coverage of former deputy budget director Kosta Diamantis and the state and federal investigations that have followed since Gov. Ned Lamont removed him from his position in October 2021.
Emails link Deidre Gifford to scandal; OHS commissioner to retire
Deidre Gifford knew that the Medicaid audit of Helen Zervas’ eye care practice was being cancelled, emails show, but didn’t intervene.
Kosta Diamantis and Chris Ziogas charged in corruption scheme
Kosta Diamantis and Chris Ziogas are charged with conspiring to have a 2020 audit of Helen Zervas’ optometry practice cancelled.
Kosta Diamantis drops request for travel to Greece before trial
Diamantis, who awaits trial on federal bribery and extortion charges, withdrew a request to vacation in Greece less than a day after federal prosecutors objected to it.
Kosta Diamantis, awaiting trial, seeks OK to go to Greece
But federal prosecutors strongly objected, saying Diamantis might claim Greek citizenship and never return.
Feds continue to probe other matters involving Kosta Diamantis
While the indictment against Kosta Diamantis was being prepared, the FBI continued to probe a cancelled audit of a Bristol eye doctor.
Kosta Diamantis arrested, faces 22 federal counts; 3 others charged
Kosta Diamantis, a former top-ranking CT official, faces 22 federal charges, including extortion, bribery and making false statements.
How one sentence relaxed CT school construction bidding rules
CT had banned construction managers from bidding on school building projects they oversee. Now it’s OK again
An open DSS audit was nixed, and a grand jury is investigating
Former Rep. Chris Ziogas’ fiancée overbilled Medicaid by $600,000. DSS stopped an audit after Ziogas and Kosta Diamantis delivered a check.
Emails show extent of influence on school construction projects
The emails outline a campaign to give contracts for CT school hazmat projects to two companies without going through the normal bid process.
Grand jury probe into CT’s school construction program continuing
The subpoenas seek records from up to 16 CT employees. All names in the subpoenas are redacted, except for Konstantinos ‘Kosta’ Diamantis.
Audit of CT’s hazmat program shows missing documentation
The narrowly tailored audit, launched in wake of the Kosta Diamantis scandal, noted a months-long gap in proper documentation of hazmat work
Director of controversial school construction grant program resigns
Douglas Rogers, hired to replace Konstantinos Diamantis to steer CT’s school construction grant program, resigned after barely four months.
DAS Commissioner grilled about school construction audit during nomination hearing
Lawmakers grilled Michelle Gilman about an audit of CT’s school construction program, which the department of administrative services oversees.
State says it won’t pay New London for school demolition work
New London officials say Kosta Diamantis told them to hire one company for remediation, but the state says it should have solicited bids.

