Originally Posted by
Draccus
Mobs will move to the place where their buddy died. It may seem like they are moving to YOU but they're moving to a spot on the ground.
It's easy to test. Head to the Vale and stealth to that group of rats right at the merdia entrance. Assassinate one and IMMEDIATELY start moving away. They'll go nuts and start attacking the area. If they hit you, you'll get decloaked and you'll think they moved to you.
They didn't. They moved to your kill and got lucky randomly attacking. If you move away quickly enough, you won't get revealed. most of the time it happens so quickly that people think they got revealed by assassinating.
Another place to test this is Wrath of Flames. That's an assassin's dream, as there are small groups of mobs evenly spread out. Assassinate one of the three in a group and move quickly. If you keep moving, you can avoid attack long enough to assassinate another one. Of course, that's more for style points than anything else as it's usually MUCH faster to assassinate one and melee the rest.