Authorities no longer believe there are any other suspects involved in the New Year's truck attack on Bourbon Street in New Orleans that killed 14 people and injured 35 others, the FBI said Thursday. After investigators reviewed all of the surveillance videos more closely, it appears that the suspect -- 42-year-old Army veteran Shamsud-Din Jabbar, who also died in the attack -- placed explosive devices in the area himself and then changed clothes, multiple law enforcement sources told ABC News. The FBI is still investigating whether there were individuals Jabbar spoke to or messaged with prior to the early Wednesday...