The Jewish man charged with a double murder appeared in court on Monday morning.
Joshua Cohen is accused of stabbing his mother and sister to death at the family’s home in Golders Green, in north-west London.
He was arrested in a local park on Saturday after police launched a manhunt.
Appearing at Hendon Magistrates Court, Mr Cohen, dressed in a grey prison sweatshirt and sweat pants, was in the dock for only two minutes, speaking only to give his name and address.