U.S. Capitol Police officer Brian Sicknick suffered two strokes and died of natural causes a day after the Jan. 6 Capitol breach, the D.C. Medical Examiner’s office confirmed on April 19, ending speculation that he was beaten to death by Trump supporters. Francisco J. Diaz, chief medical examiner for Washington, told The Washington Post that Sicknick died Jan. 7 after suffering two strokes, and didn’t suffer from an allergic reaction after being sprayed with chemical irritants as he engaged with the crowd, Diaz said. The examiner said he found no evidence of internal or external injuries, but he added that “all that transpired played a role in his condition.” Diaz didn’t elaborate, citing privacy laws. Two men are accused of assaulting Sicknick by spraying a chemical irritant—possibly bear mace—during the Capitol breach. But Diaz told the Post there’s no evidence suggesting Sicknick suffered an allergic reaction, saying that such a reaction would …