NEW ORLEANS (AP) — The FBI now says that the pickup truck driver responsible for a deadly rampage in New Orleans acted alone.

Officials said Wednesday that they were seeking additional potential suspects in an attack being investigated as an act of terrorism.

But Christopher Raia, deputy assistant director of the FBI’s counterterrorism division, said Thursday that the evidence now shows that Shamsud-Din Jabbar was solely responsible for the attack and professed allegiance to the Islamic State.

The FBI also revealed that Jabbar posted five videos on his Facebook account in the hours before the attack in which he proclaimed his support for the militant group and previewed the violence that he would soon unleash in the city’s famed French Quarter district.