and car pieces everywhere. it was surreal to think, wow, it happened right here. reporter: it wasn t even an hour into the new year when hundreds of concertgoers exited the kodak center and that is when michael avery driving a rented suv packed with gas canisters drove towards a pedestrian crossing and collided with a rideshare vehicle killing the passengers inside. avery also died later at the hospital. investigators are still combing through evidence, but nothing thus far has been recovered had provides any additional insight into why this occurred. reporter: when investigators what they know is that avery travelled in his own car on or around december 27 and checked in to a hotel. on december 29, police say avery picked up a rental car and on december 30, images like this one show that he was alone when he bought gas canisters and
with gas canisters drove towards a pedestrian crossing, collided with a rideshare vehicle killing the passengers inside. avery also died later at the hospital. investigators are still combing through evidence recovered from his vehicle, but nothing thus far have been recovered to provide any additional insight into why this occurred. reporter: what investigators do know is that every traveled in his own car from syracuse to rochester on or around december 27th and checked into a nearby hotel. on december 29th, police say that every picked up a rental car, and on december 30th, images like this one show that he was alone when he bought gas canisters and filled them. it s a very highly organized structured plan of attack by this person for whatever reason. the only question for investigators at this point is why did he do it? and was anyone else involved? reporter: to help answer those questions, authorities with a joint terrorism task force and fbi executing search
gas canisters drove towards a pedestrian crossing and collided with a ride share vehicle, killing the passengers inside. avery also died later at the hospital. investigators are still combing through evidence recovered from his vehicle, but nothing thus far has been recovered that provides any additional incsight into why ths occurred. reporter: what investigators do know is avery traveled in his own car from syracuse to rochester on or around december 27th and checked into a nearby hotel. on december 29th, police say avery picked up a rental car. and on december 30th, images like this one show he was alone when he bought gas canisters and filled them. a very highly organized structured, planned attack by this person, for whatever reason. the only question for investigators a this point is why did he do it, and was anyone else involved. reporter: to help answer those questions, authorities with the joint terrorism task force and fbi executing search warrants at various location