Ryan Seacrest got a genuine Halloween scare yesterday when a man showed up at the Comcast Entertainment Group building saying he "had business" with the American Idol host. Chidi Benjamin Uzomah Jr. was recently released from jail after serving 15 days for attacking a security guard who was walking Seacrest to his car last month. He was re-arrested by LAPD officers yesterday, and Seacrest has taken out a temporary restraining order against him. "His aggressive and violent efforts to come into physical contact with me are extremeley frightening to me," the TV host said. Uzomah was carrying a pocketknife at the time of his arrest, and is being held on $150,000 bail.