The father of the man discovered at a New Mexico compound with 11 starving children has called his son 'a little bit extreme' and 'high strung'.

Imam Siraj Wahhaj, the leader of a well-known New York City mosque, also revealed other family members told him that his grandson Abdul-ghani Wahhaj is dead.

The three-year-old, who was severely disabled, was reported missing by his mother in December from their Atlanta home.

She told authorities that Siraj Ibn Wahhaj, the child's father and her husband, said he wanted to perform an exorcism on the child. He took their son to the park and never returned.

Wahhaj, his so-called new wife, and his two sisters were all arrested on Friday at the compound, where authorities discovered 11 starving children.

Siraj Wahhaj, the leader of a well-known New York City mosque, has revealed other family members told him that his grandson Abdul-ghani Wahhaj was buried in his father's compound

Siraj, who spoke to reporters on Thursday, also revealed that his son Siraj Ibn Wahhaj, who has been charged with child abuse and kidnapping, could be a 'little bit extreme' and 'high-strung'

Siraj, who is Wahhaj's father, claimed the children who had been living at the compound said Abdul-ghani was buried there after he died, according to CBS News.

'Whoever is responsible, then that person should be held accountable,' he added.

The search for the boy led authorities to raid the New Mexico compound last week.

His remains were discovered on the compound Monday, which would have been his fourth birthday.

Abdul-ghani could not walk, suffered seizures, and required constant attention and daily medication due to receiving a lack of oxygen and blood flow at birth.

Authorities have not yet publicly identified the body, which they said is in a 'state of decomposition that has made identification challenging'.

Kurt Nolte, the chief medical investigator, said it would 'not be a quick process'. The remains will stay in New Mexico until the investigation is completed.

Siraj said the family is trying to make arrangements to bring Abdul-ghani's body back to Georgia for a funeral.

Abdul-ghani's mother told police that Wahhaj (pictured in court on Wednesday) said he wanted to perform an exorcism on the child before they both disappeared

Wahhaj, along with his 'wife' Jany Leveille (pictured) and two sisters, was arrested on Friday at the New Mexico compound, where authorities discovered 11 starving children

The imam also revealed that all 11 of the children discovered at the compound were either his biological grandchildren or members of his family through marriage.

'I'm very concerned with the condition of my grandchildren,' he said.

Siraj said that he was baffled by Wahhaj's decision to move his family deep into the desert.

He suggested that a psychiatric disorder was to blame, but said he never thought his son was extreme enough to kill anyone.

'It sounds to me it sounds crazy. But I don't know,' he said. 'I make no judgments yet because we don't know.'

The elder Wahhaj said he did not know anything about his son wanting to perform an exorcism on the boy. But he said his son and one of his daughters had become 'overly concerned' with the idea of people becoming 'possessed.'

Siraj said he was baffled by his son's decision to disappear and move his family to the desert

The mother of the missing three-year-old boy told DailyMail.com her husband said he was taking their son to the park, then walked out and never returned.

Speaking on Hakima Ramzi's behalf, attorney and family friend Shariyf Muhammad has revealed her husband, Wahhaj's cold-hearted deception.

He said: 'I think this has been mischaracterized as a custody battle because it's been reported that he 'took the child.'

'But they were married, they're still married although he chose to estrange himself by his actions.

'Hakima told us, "He told me he was taking Abdul-Ghani to the park for a little while." She had no reason to think any different.'

He added: 'She's having a very hard time right now. Hakima is a mother whose son has been missing for nine months and she has gone through every range of emotion from anger to sadness to despair to helplessness to fear, anxiety and a desire for revenge.'

Ordeal: Hakima Ramzi's attorney told DailyMail.com: 'Hakima told us, "He told me he was taking Abdul-Ghani to the park for a little while." She had no reason to think any different.'

Siraj's mosque has attracted a number of radicals over the years, including a man who later helped bomb the World Trade Center in 1993.

In a video posted Thursday on Facebook, mosque spokesman Ali Abdul-Karim Judan called the case a 'domestic situation' and vehemently denied it had anything to do with extremism.

'None of the charges had anything to do with anybody teaching anybody shooting to commit acts of terrorism or to go in and shoot up any school,' he said. 'Because it's a Muslim and the circumstances that are surrounding their situation, they want to change the narrative.'

Wahhaj, 39, his so-called wife Jany Leveille, and his sisters Hujrah and Subhannah Wahhaj made their first court appearance on Wednesday.

They were pictured in the dock as prosecutors accused them of training the children to carry out mass school shootings.

Also in court was Lucas Morton, Wahhaj's brother-in-law and Subhanah's husband.

Each pleaded not guilty to 11 counts of felony child abuse, while Morton was also charged with harboring a fugitive.

Morton appeared in court wearing a white towel folded on his head styled like a keffiyeh.

Wahhaj was also charged with abducting his son, known as AG, from his home in Atlanta last December.

District Attorney Donald Gallegos said he will wait until the boy's autopsy is complete before deciding whether to press additional charges.

The imam's daughters Hujrah (left) and Subhannah (right) have also been charged in the case and appeared in court on Wednesday

Lucas Morton, the husband of Subhannah, also appeared in court with his head covered with a towel, apparently folded in a style resembling a plain white keffiyeh

In petitions seeking to detain all five suspects without bail, prosecutors said each was under investigation in the boy's death.

Police earlier said that Wahhaj was heavily armed with an AR-15 rifle and four pistols when he was arrested, and that there was a shooting range inside the compound.

The children, aged between one and 15, were found in a filthy state, had likely not eaten in days, and had loaded firearms within their reach.

In court documents filed on Wednesday, prosecutors claimed Wahhaj was using the weapons to train the children to perform mass school shootings.

Wahhaj was charged with felony child abuse and abducting his son, who would have turned four years old on Monday

It is not yet clear if they had set out a specific plan targeting any one school or if the practice was general. The compound is close to the Colorado border.

No weapons charges were filed in the case.

The FBI had been watching the compound for months after Abdul-ghani vanished.

But authorities could not obtain a search warrant because Abdul-ghani's mother never spotted her son or Wahhaj in photographs that were taken at the compound.

Officers were only allowed to raid the compound after they intercepted a message from the children that read: 'We are starving and we need food and water'.

The children have since been taken into government care.

Gerard Jabril Abdulwali, Morton's father, also revealed that he received a text message from his son last Thursday that said 'they were starving'.

It was the first time he had heard from his son in more than a year.

Abdulwali, who could be heard shouting 'Allahu Akbar' - God is great - in court on Wednesday, said his son and the other suspects were merely 'peaceful adult settlers'.

'They were homesteading and were trying to establish a peaceful community, a peaceful life away from society,' he said. 'They just went about it the wrong way.'

Neighbors have since revealed how they heard shooting coming from within the compound over the last few months.

Pictured are weapons that were found at the compound in New Mexico where prosecutors claim Wahhaj was training the 11 children to carry out school shootings

Photographs taken on the compound on Tuesday show what looks like a make-shift target practice range

The compound is in the desert in New Mexico. It was put together with trailers and the children had been there for months

Tyler Anderson, who lives nearby, said the Wahhaj family arrived in the desert in December with enough money to buy groceries and construction tools to build their home.

Anderson, 41, helped them set up solar panels and said the 11 children often played with his kids, but had stopped coming by several weeks ago.

We just figured they were doing what we were doing, getting a piece of land and getting off the grid Neighbor Tyler Anderson

He was aware of a target practice area set up on the compound and said he often heard shots coming from the property but that it stopped recently.

'We just figured they were doing what we were doing, getting a piece of land and getting off the grid,' he said.

Morton owns the tract of land where the family was based and started building their compound.

The man who owns the patch next to it, however, said the family started encroaching on his acreage as the compound grew bigger.

He appealed to the courts to have them convicted for the breach but nothing was done.

'I started to try and kick them off about three months ago and everything I tried to do kept getting knocked down,' the man, whose name has not been released, said on Tuesday.

Sisters Subhanah Wahhaj, 35, (left) and Hujrah Wahhaj, 38, (right) were arrested on Sunday

Jany Leveille, who also goes by the name Maryam, was also arrested for child abuse on Sunday. Wahhaj's brother-in-law, Lucas Morton, (right) was also taken in to custody

As prosecutors pleaded with a judge not to grant the adults bail on Wednesday, they made reference to their religious background and Siraj's precarious ties to terrorists.

Siraj was one of 170 people identified by US Attorney Mary Jo White in 1995 as 'unindicted persons who may be alleged as co-conspirators' in the 1993 World Trade Center bombing.

Imam Wahhaj testified as a character witness for Sheik Omar Abdel Rahman, pictured, who masterminded the 1993 WTC attack

While he was never charged, Siraj testified as a character witness in 1995 for blind Sheik Omar Abdel Rahman, who was one of the conspirators of the 1993 attack.

He spoke glowingly of him at his trial, saying: 'He is a well known scholar, he is a respected 22 scholar.

'You know, people in the community, they talk about 23 well known scholars and he is among the ones who is 24 mentioned. He is called the hafiz of the Koran.

'He memorized the entire Koran, 114 chapters, that's why I respect him.

'He has memorized the many statements of Prophet Mohammed, peace and blessings be upon him. And he is bold, as a strong preacher of Islam. So he is respected that way,' he added.

In the past, Siraj has complained about the fact that the list ever became public and has insisted that he himself has never plotted any form of attack on the country.

He was never charged with any crime.

In November 2009, Siraj was one of many Muslim leaders who met with New York Mayor Michael Bloomberg at City Hall.

Siraj said that he hoped all Americans would eventually become Muslim and also referred to the FBI and CIA as the 'real terrorists'.

The compound is near Amalia, in the desert of northern New Mexico, and is close to the Colorado border

Another photgraph taken at the site on Tuesday as investigators continue working at the scene. Despite landowners' efforts to remove the family, they remained there for months