Sayfullo Saipov, the suspect charged in Tuesday’s deadly terror attack in New York City, asked law enforcement during an interview if he could display an Islamic State flag in his hospital room.

According to a criminal complaint filed Wednesday, Saipov asked to display the flag because he felt “good” about what he did, adding that he was considering displaying the flag on his truck but decided it would draw too much attention.

The suspect also told law enforcement he specifically chose Halloween to carry out the attack because he surmised there would be “more civilians on the street.”

Federal prosecutors filed terrorism charges against Saipov in connection to the deadly terror attack with a Home Depot truck that killed eight people in New York City.

After the assault, the suspect was shot in the abdomen by a New York Police Department officer and brought to a local hospital for surgery.