MONTGOMERY COUNTY, Md. - A former police chief who once swore to protect the public is now a convicted arsonist. What we know: David Michael Crawford pleaded guilty on Friday on multiple arson counts in Montgomery County. The judge found Crawford guilty on Counts 1, 4, and 6 — tied to a series of deliberate fires. One of those fires happened while his pregnant daughter-in-law and children were inside. Miraculously, no one was killed in any of the fires.