The 19-year-old being held by New York City police as the suspect in a machete attack against three police officers New Year’s Eve carried a handwritten diary, which expressed his desire to join the Taliban in Afghanistan and die as a martyr, according to multiple law enforcement sources.

(SOURCE) https://www.cnn.com/2023/01/01/us/new-years-eve-machete-attack-new-york/index.html