NEW : iReporter A man who heard two shots , then two more . A man was shot and killed Thursday in a pre-screening area at Bush Intercontinental Airport in Houston , authorities said . Police say he was confronted by someone from Homeland Security . Autopsy to determine cause of death , police say . McDonald 's employee tells an affiliate she heard two shots , began to run .
NEW : iReporter A man who heard two shots , then two more . Police say he was confronted by someone from Homeland Security . Autopsy to determine cause of death , police say . McDonald 's employee tells an affiliate she heard two shots , began to run .