William Chrestman, the Olathe Proud Boy who threatened a federal officer and carried an ax handle into the Capitol during the Jan. 6 riot, was sentenced Friday to more than four years in prison and 36 months of supervised release. In addition to the 55-month sentence, Chrestman, 50, also must pay $2,000 restitution for damage to the Capitol, which the government says totaled more than $2.9 million. “I’m pretty ashamed of myself,” Chrestman said as he stood before Judge Timothy J. Kelly in U.S. District Court for the District of Columbia. He read a statement apologizing to the court and to his …