A co-defendant of former Briarcliff Manor Police Officer Nicholas Tartaglione has plead guilty to the charges against him.

A plea by Joseph Biggs was revealed in court documents this week when a federal judge approved his plea allocution.

Biggs was arrested in 2017 in connection with the murders of four men in Orange County stemming from a drug conspiracy.

One man was murdered at a bar, while three others were fatally shot at a property Tartaglione owned. They were all buried together on the property.

Biggs, a former security guard at the Greenburgh-Graham school in Hastings, testified about the murders.

The 61-year-old Nanuet resident faces life in prison when sentenced.

Tartaglione faces life in prison when he is sentenced in October.