Man found with 11 children on filthy New Mexico compound was training them to commit school shootings, prosecutors say Police knew of a shooting range that had been installed on the property.

The man who was arrested on a filthy New Mexico compound with 11 abused children was training the children to commit school shootings, according to court documents obtained by ABC News.

The documents allege that 39-year-old Siraj Wahhaj was conducting weapons training at the property in Amalia, near the Colorado border. A foster parent of one of the 11 children allegedly stated to law enforcement that Wahhaj had "trained the child in the use of an assault rifle in preparation for future school shootings," according to a criminal complaint.

Law enforcement was aware of a short-distance shooting range that had been installed at the compound, Taos County Sheriff Jerry Hogrefe said in a press conference Tuesday afternoon.

A defense attorney for Wahhaj is disputing the claims made by prosecutors in court documents that the children were being trained to commit school shootings, the Associated Press reported.

Aleks Kostich of the Taos County Public Defender's Office said the allegations were not explained and the information came from the foster parent of a child removed from the compound, according to AP.

The attorney doubts the credibility of the source and believes prosecutors feel the same way, Kostich told AP.

Wahhaj was heavily armed with an AR-15, semiautomatic rifle, five 30-round magazines and four handguns last week when sheriff's deputies executed a search warrant and swarmed the property to look for him and his young son, whom authorities believe was kidnapped by Wahhaj.

Prosecutors filed the documents Wednesday and asked that Wahhaj be held without bail because he "has proven to be a danger to the community."

"Should the defendant be released from custody, there is a substantial likelihood defendant may commit new crimes due to his planning and preparation for future school shootings," the criminal complaint read.

Wahhaj did not enter a plea when he appeared in court Wednesday afternoon. A judge ruled that he be held until a no bond hearing takes place within the next five days.

The 11 children, who "looked like third-world country refugees" and were wearing rags for clothes, were found on the compound last week, as were five adults, Hogrefe said.

All five adults -- including Wahhaj, another adult male and three adult women -- have been arrested and charged with 11 counts of felony child abuse, Hogrefe said. Wahhaj was also charged with child abduction, while the other adult male, Lucas Morten, was charged with harboring a fugitive, Hogrefe said.

The four other adults also appeared in court Wednesday. Morton and two of the women pleaded not guilty, while a third woman did not enter a plea.

The remains of a young boy were found on Monday on an "inner portion" of the compound, Hogrefe said. The remains have not yet been identified, and Wahhaj is under investigation in the death of the child.

The three female adults would only provide names of themselves and the children, but would not give any information as to the whereabouts of the child, except to say that "he is not my son and I (we) am not allowed to talk about him," court documents alleged.

Wahhaj "intentionally or recklessly" placed a child "in a situation that may endanger life or health," according to the criminal complaint. This environment allegedly included "no food, clean water, leaking propane gas, filthy conditions, hazardous wood and broken glass, no hygiene or medical care," the complaint states.

"Trip hazards, wood with nails sticking up, broken glass, bottles, and open trenches littered the property," court documents said.

The "makeshift property" is surrounded by tires and an earthen beam and lacks electricity and running water, Hogrefe said.

Wahhaj was found to be "in control of the property," according to the complaint.

The three adult women are believed to be the mothers of all 11 children, Hogrefe said.

"These children were hungry, they were thirsty, they were filthy," Hogrefe said. They are now being cared for by the New Mexico Children, Youth & Families Department.

"It's obvious to me that they were brainwashed and feel great intimidation from the men that were in control of this facility," Hogrefe said of the women and children.