BUCKS COUNTY, Pa. (CBS) – Two men charged in the brutal murders of four men at a Bucks County farm pleaded not guilty in court Thursday during their formal arraignment.

Cosmo DiNardo and his cousin, Sean Kratz, have been charged in the murders of Jimi Patrick, Dean Finocchiaro, Tom Meo and Mark Sturgis. Their bodies were found on a farm in July owned by DiNardo’s parents.

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“You get angry, you get sad, you’re reliving it over and over,” said Sturgis’ father Mark Potash.

Family members filled the courtroom in Doylestown Thursday afternoon, coming face to face with the men who allegedly killed their loved ones. They watched as DiNardo and his cousin Kratz plead not guilty to the crimes.

“This is about the families who lost loved ones,” said Meo family attorney Andrew Duffy. “This is about a family who just had Thanksgiving and had to look across the table at an empty chair.”

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Authorities say DiNardo admitted to killing the men and burying their bodies and as part of the original agreement with prosecutors he would not face the death penalty. Now the Bucks County District Attorney’s Office has filed court documents  giving them the option to seek death, if DiNardo does not continue to cooperate.

“We made an agreement with Cosmo DiNardo. We honor our agreements, so should Mr. DiNardo decide to uphold his end of the bargain, we will not seek the death penalty,” said District Attorney Matt Weintraub.

“The Finocchiaro family supports the death penalty, period, point blank,” said Finocchiaro family attorney Tom Klin.

While other attorneys for the victims families echoed that same sentiment, loved ones are still holding on to memories.

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DiNardo’s attorney hustled by our cameras without comment.