British ISIS supporter Husnain Rashid has pleaded guilty to terrorism charges — including a threat to attack Prince George‘s school. According to CNN, the terrorist wrote messages targeting the heir to the throne, writing, “even the royal family will not be left alone” alongside a photo of the four-year-old next to a superimposed silhouette of a jihadi fighter.

Rashid was arrested in 2017 and is two weeks into his trial. Since his arrest, he has maintained his innocence, denying any involvement with planning attacks against the tiny royal’s school. However, his Internet activity between October 2016 and November 2017 prove otherwise.

Along with providing the address to Prince William and Kate Middleton‘s son’s school in southwest London, Thomas’s Battersea, the ISIS member also encouraged attacks on soccer stadiums, British army bases, and shopping centers. The outlet also reports that Rashid had plans to travel to Turkey and Syria to fight in territories controlled by ISIS.

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After revising his plea, the judge told Rashid a lengthy sentence was “inevitable” and his sentencing date is set for June 28. This is just the latest scare for Prince George. Last September, a woman was arrested on suspicion of attempted burglary after trespassing on his school’s property one week after he started. “Police were alerted and officers attended immediately after the issue came to light,” a law enforcement official told The Daily Mail. “Police are part of the protective security arrangements for the prince and we will continue to work closely with the school, which is responsible for building security on its site.” Luckily, George was in class at the time and was not harmed.

Thomas’s Battersea is an exclusive school located near Kensington Palace, and offers a wide variety of curriculum including ballet, orchestra, and rugby and costs roughly $22,000 a year. “We are honored that the aims and values of Thomas’s reflect those that their Royal Highnesses would like for Prince George’s education,” the school’s headmaster, Ben Thomas, said in a statement following George’s enrollment. “We are deeply conscious of the trust that they, like all Thomas’ parents, are placing in us and we hope very much to live up to their expectations.”

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