Cold-blooded, brutal and outlandish - if the plan Stephen McCullagh set in motion to kill his pregnant partner was the plot of one of his video games, it may have been dismissed as being too far-fetched. But from the content creator's first appearance in court in early 2023, it was clear authorities believed he had not only murdered Natalie McNally but also carefully constructed an elaborate house of cards to avoid justice. There were his tears when police arrived at the scene, responding to his 999 call and his claims that another former partner of Natalie's had done it. His presence with Natalie's family in the days and weeks after her death, and even his attempt to spy on their conversations. Warning: This article contains very strong language which readers may find offensive And, of course, there was the alibi – the six-hour YouTube gaming 'live stream' broadcast the night before Natalie was found dead, that turned out to be a pre-recorded ruse.…