State police say 52-year-old Doran Shumway, of Windham, is charged with attempted murder and first-degree assault.
Police responded to Shumway's home at about 10:30 p.m. Wednesday where they found the victim and suspect.
The victim had suffered machete wounds to his left arm and chest. He was taken to a local hospital then flown to a Hartford hospital with critical injuries.
His name was not made public but authorities say he is a 42-year-old Mansfield man.
Shumway was held on $1 million bond pending a court appearance Thursday. The case wasn't listed in online court records and it couldn't be determined if Shumway had an attorney.
----------
* More Connecticut news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube