On Sunday night, police said they had arrested a 58-year-old man, who has been bailed until a date in January.
Detective chief inspector Neil John, who is leading the investigation for the Metropolitan Police, said: “This arrest comes just four days after our latest appeal, and I would like to thank everyone who has already come forward with information.
“However, we still need to speak with anyone who may have witnessed the events leading up to Anthony’s murder.”