Gurdeep Garcha QC is representing a Smethwick man who has gone on trial for the murder of his mother and stepfather.
The two victims were found at their home in Oldbury in February 2020 several days after they were killed. They each had multiple stab wounds.
The prosecution case is that the Mr Garcha’s client killed the pair, fuelled by his fascination with knives and a long-standing hatred of his mother.
The trial, at Birmingham Crown Court, is expected to last two weeks.