When Shaun Miller saw a community advisory on the Westminster Police Department’s Facebook page about a peaceful demonstration scheduled in the city, she knew she had to get involved. “Something kept calling me to it,” said Miller, who’s lived in the city for 42 years. “I need to be a part of this.” She commented on the post and was contacted by the local organizers, who were representing Black Lives Matter. They asked if she would speak at the event, and she said yes. She also called Westminster Police Chief Mark Lauderback to let him know she was going to be…