Complex sentence: When she goes through his things and finds the gun, he kills her and escapes again: the murder is not reported until much later that evening, allowing the Jackal to assume one of his two emergency identities and board the train for Paris.
Split into simpler sentences: When she goes through his things and finds the gun, he kills her and escapes again. The murder is not reported until much later that evening, allowing the Jackal to assume one of his two emergency identities and board the train for Paris.