 He is the first of four defendants to stand trial for Reed's murder. Two co-defendants reached plea agreements, including one who testified against Cottingham during trial. The fourth defendant is scheduled to go on trial this summer. A candidate for U.S. Senate seat in Maryland paid a visit to Frederick on Saturday. Prince George's County Executive Angela Osso-Brooks is campaigning as a Democrat for the Senate seat. She sat down with WFMD News to discuss some of the issues in her campaign.