Caius Veiovis was convicted Friday of first-degree murder, kidnapping and witness intimidation after a month-long trial in Springfield, Massachusetts.

“I’ll see you all in hell, you remember that. Every [expletive] one of you, I’ll see you in hell,” screamed the convicted murderer to jurors following the reading of the verdict.

The jury deliberated for about 38 hours over a six-day period before reaching their decision.

“We have never wavered in our belief that we have charged all three of these people properly,” Berkshire County District Attorney David Capeless said.

Veiovis is the third and final man to be convicted in the kidnapping and brutal triple murder.

Caius Veiovis, man w/ implanted horns, guilty of murder; yells at jury 'see you all in hell' http://t.co/FYj9nLpECD pic.twitter.com/cWS9wol0Sj

— 7NEWS Denver Channel (@DenverChannel) September 27, 2014

It was in 2011 that David Glasser, Edward Frampton and Robert Chadwell were kidnapped and murdered, their bodies dismembered and buried on private property in Becket, Massachusetts.

“I don’t think any investigation this expansive, this large, this extensive have ever been undertaken in Berkshire County,” Capeless said.

Adam Lee Hall and David Chalue are already serving life sentences for the murder. All three cases were won primarily on witness testimony. Capeless said there was no DNA evidence or murder weapon to tie Veiovis to the crimes but he insists that Veiovis had a hand in the murders.

Defense Attorney James Gavin Reardon Jr. disagrees with the jury’s decision, citing the lack of physical evidence against Veiovis.

“I obviously respectfully disagree with their result. I’m an advocate for my client,” Reardon said. “There was some important legal issues about circumstantial evidence and reasonable inferences from circumstantial evidence.”

Reardon repeatedly conceded Veiovis is odd, with his creepy horn implants and satanic facial tattoos, but insists Veiovis is not a murderer.

“I always have confidence in juries and I still believe strongly in the American jury system, still think it’s an excellent system. I think it’s the best system that exists,” Reardon said.

Massachusetts law calls for an automatic appeal for a first-degree murder conviction.

Sentencing is scheduled for Monday.