i have read in many guides and in commons going back, that he should return to his spawn point after chasing someone anywhere(zone line for instance) as soon as he loses agro from all targets he should just stop and stand where he is till its time for him to despawn.
currently to runs back to the rogues guild.
http://eqbeastiary.allakhazam.com/search.html?id=2388
i see jan 02 referencing this