Officers. Police brass and Police Unions in new jersey and boston are warning officers to take extra precautions. The words of warning come as police learn more about the gunman. Kelly wright has the latest. Reporter police say izmael brisbey has been arrested 14 times. Yesterday before the shooting he was angry at police for the killing deaths of Michael Brown and eric garner. Before the shootings. Reporter he told them he told two men to follow him on instagram and watch what happens. Ramos family is pleading for an end to the violence. I hope and pray that we can reflect on this tragic loss of life that has occurred so that we can move forward and find an amicable path to a peaceful existence. Reporter some are calling for mayor deblasio to take action. We need to work with the community and the Police Department. We dont need you to go to just one side. The Police Department needs you as well. Were asking all new yorkers to turn this pain into purpose and to ensure that we send a v