EXCLUSIVE
The person who tricked Amanda Bynes into fleeting to L.A. where she finished up in a mental ward is none other than the man who some say made life-threatening peril for a then-unstable Britney Spears.
TMZ has learned … Sam Lutfi — who Britney’s parents say was recklessly medicating her before she was eventually strapped to a stretcher and taken to a psych ward…