Nodarse faces a 22-count indictment that includes murder charges.
DuPage County prosecutors say Nodarse killed Jeffrey Kramer, 50; his wife, Lori Kramer, 48; and their son, Michael Kramer, 20; during a home invasion at the beginning of March.
Investigators say Nodarse broke in after being convinced to do so by 28-year-old Johnny Borizov of Willow Springs. Borizov has a 14-month-old son with the Kramers' daughter, Angela, 25. Angela survived the attack and called 911 from a closet.
During Wednesday's court appearance, the Countryside resident held his head down and let his attorney do most of the talking. His lawyer waived the reading of the 22 charges and pleaded not guilty.
"They presented the 22-count indictment. It was not totally unexpected, included murder charges, conspiracy charges, home invasion," Randy Rueckert, Nodarse's attorney, said. "So we pled not guilty. I see this as the first step in a process. The process will probably take quite a while. Take it step by step."
Two of Nodarse's friends were in court Wednesday and said they loved him and do not understand how he could be accused of such a horrific crime. They said that they were going over to visit him in jail, following the hearing.
No one from the Kramer family was in court Wednesday.
Borizov pleaded not guilty to his charges last week. Borizov and Angela Kramer had a custody hearing scheduled for Wednesday, but it was continued until Monday.