Investigators continued Thursday to probe the 29-year-old Uzbek immigrant charged with the New York truck attack, poring over his communications to see if he had any help or guidance before carrying out his deadly rampage, while President Donald Trump publicly weighed in on the federal prosecution of the suspect.
New York police officials say the attacker appears to have radicalized himself online and that it does not appear anyone else was involved, though they said that continues to be a key question in the international investigation launched after the Halloween attack in Lower Manhattan killed eight people and wounded a dozen others.
Federal authorities charged Sayfullo Saipov, the suspected attacker, with providing support to a terrorist organization, saying that he was inspired by the Islamic State to carry out the rampage. The militant group, also known as ISIS, has urged its supporters to use vehicles for attacks.
In the charging document, filed Wednesday, authorities said Saipov planned for a year to carry out an attack in the United States and ultimately chose Halloween because he believed more people would be outside as potential targets.
(c) 2017, The Washington Post · Mark Berman, Matt Zapotosky