Katy's mother Angela witnessed the kill but persuaded her not to call the police, and they went through a pretence that Tommy had been killed by an intruder, until forensic evidence led to Angela's arrest.
Katy's mother Angela witnessed the kill. Katy's mother Angela persuaded her not to call the police. Tommy had been killed by an intruder. They went through a pretence. This was until forensic evidence. This forensic evidence was led to Angela's arrest this.