and heavy bike locks managed to shut down a good portion of the b.a.r.t. system by locking themselves to two trains in west oakland. it s a very big chain. my ancestors were in chains like this. this is nothing. we are especially sending this message today on black friday when we are trying to purposely interrupt commerce. reporter: when it became clear the demonstrators weren t moving, the passengers on this train were evacuated. i m trying to get home to livermore. reporter: what do you think? they need to move. i mean, it s sad that he lost his life, but i have things i have to do. i agree with the message but it should be done another way. reporter: b.a.r.t. police gave several dispersal orders before moving in to arrest those in the human chain. once we separated the person from the train by taking off the piece of the train that they were chained to, we took the entire group off the train. reporter: 14 demonstrators in all, seven on each side, were e