Update July 18, 1:34 p.m.
Kansas City, Missouri, police say the man arrested Sunday afternoon at the house on 77th Terrace linked to the Gavin Eugene Long was picked up on a "minor warrant."
Kamerran Fryer was arrested for a seat belt violation and was released on a signature bond, according to statement from police.
Three reporters said they were met at the door by Fryer while he was holding a long gun.
Federal agents and police searched his home for several hours.