<sod >When they asked for a password to lock his phone, the court heard he replied: "Yeah I.S.I.S - you like that?" In legal papers prepared for his defence, Syed was described as Ã¢ÂÂhighly vulnerable due to family history, lack of education, addiction to violent online games and the arrest and imprisonment of his brotherÃ¢ÂÂ.< eod>< sod > When they asked for a password to lock his phone, the court heard he replied: Ã¢ÂÂYeah I.S.I.S Ã¢ÂÂÃÂ you like that?Ã¢ÂÂ Commander Dean Haydon, from the Counter Terrorism Command, said information from members of the public triggered an investigation by Scotland Yard and MI5.< eod>