Man who took assault rifle into DC restaurant has history of drug, alcohol charges

CHARLOTTE, N.C. — An armed Salisbury man who caused a panic in Washington, D.C., for trying to "self-investigate" a conspiracy involving Hillary Clinton has an arrest record for drug and alcohol offenses. Washington police said Edgar Maddison Welch, 28, walked into the front door of the Comet Ping Pong restaurant Sunday and pointed an assault rifle…