Complex sentence: Tragically, on Christmas night 1906 he strangled his wife in their bed and, with five children and a lodger asleep on the premises, he attempted to slash his own throat before surrendering to the police.
Split into simpler sentences: Tragically, on Christmas night 1906 he strangled his wife in their bed. Then, with five children and a lodger asleep on the premises, he attempted to slash his own throat before surrendering to the police.