Hunter Nadeau, accused of killing one man and wounding several others during a shooting at a Nashua, New Hampshire country club over the weekend, appeared in court briefly Monday afternoon and will remain in custody.

Nadeau, was charged with one count of second-degree murder following the Saturday night shooting at Sky Meadow Country Club. Police said more charges are likely against Nadeau, who is a former employee at the business.

Nadeau appeared by video in Nashua Circuit Court. He confirmed to a judge that he and his lawyer agreed to waive a formal arraignment, and he will remain in jail until a probable cause hearing on Oct. 1.

Authorities say the shooting lasted less than a minute. Nadeau allegedly shot and killed 59-year-old Rob DeCesare, who lived on the golf course and was having dinner in the restaurant when shots began. DeCesare's mother said he was shot while protecting his wife and daughter.

An employee who was working as a host for a wedding that was happening at the time was shot in the face. They were taken by MedFlight to Brigham and Women's Hospital in Boston in critical but stable condition.

The third gunshot victim was also dining at the restaurant. Their condition was not released.

At least four other people were hurt with injuries that included a broken hand and cuts.

According to police, the shooting could have been worse but people rushed in to try and subdue the alleged gunman. Witnesses said one man hit Nadeau over the head with a chair.

"Heinous act of a coward'

Rob Parsons, the owner of Sky Meadow Country Club, said the shooting "was the heinous act of a coward." 

"To the DeCesare family, there are no words to express the pain and sorrow you and our community are feeling over Robert's murder. He is a hero," Parsons said outside the courthouse. 

Parsons also read a letter from Charlene DeCesare, Rob's wife. "The first thing she said was everyone needs to know I am not leaving Sky Meadow, and I am not leaving this community," Parsons said. "This is my solace, and this is my home." 

Suspect worked at country club

New Hampshire Attorney General John Formella said Sunday that Nadeau stopped working at Sky Meadow about a year ago. It was not disclosed if he was fired or quit.

Formella said authorities are working to determine Nadeau's motive, but the shooting does not appear to have been a hate-motivated crime. Witnesses have reported that Nadeau made statements during the shooting, but Formella said it appears likely the alleged shooter was trying to "create chaos in the moment."

On Monday, the Nashua Police Department had several officers at Sky Meadow to escort anyone who was in the ballroom when the shooting took place inside to gather any belongings they left behind. People who were in the restaurant will not be able to collect items yet because of the ongoing investigation.

People who do not come to Sky Meadow to claim items will be able to retrieve them from the Nashua Police Department Evidence Division at a later date.