(Salem, OR)  --  Oregon Attorney General Ellen Rosenblum says an investigator with the state Department of Justice targeted supporters of Black Lives Matter while searching social media for potential police threats.  Rosenblum made the remarks after a letter from the Urban League of Portland, which went public yesterday, accused the department of conducting "digital surveillance" of Oregonians who used the hashtag "Black Lives Matter" on social media.  Rosenblum says the investigator used software to conduct profiling, and she put a stop to it after learning about it.  She says a complete human resources investigation is being conducted.