Alexia Lien News Today

. police are closer to finding a motorcyclist expecting to play a key role on the biker swarm on an suv driver for support. police say they know who the biker is and expect him to be in custody soon. authorities also now have the original copy of this video which launched the encounter into the national spotlight. national correspondent susan candiotti has the latest. >> reporter: police have now tracked down the motorcyclist who shot this helmet cam video. they found him in this home in bellp...