Act first, think later, that had been Rufus's modus operandi. It had caused problems he had to fix. This time he'd had plenty of time to think first. On the train down to London he had planned his bolt hole. The police wouldn't think of looking for him at Marcus's house.
He knew about Tony Branthwaite and his sexual peccadillos. One way or another he was going to get into Marcus's house and hide there until the dust had settled. He knew he would probably have to kill Tony, if necessary, there on the doorstep or, preferably, in comfort inside.