User blog comment:VampiresAndWerewolfsareAwesomeAsHell23/Aro (My Thoughts of the character)/@comment-90.49.19.9-20121211102206

he doesn't have the gift of tactile thought projection, he reads the mind of others through touch, is diferent for Renesmee's gift, the opposite of hers if you will.

And he didn't kill his sister because she found happiness with Marcus (she has Marcus mate and Aro has ok with it), he killed her because she convince Marcus to leave the Volturi, since Marcus gift was important to Aro (which doesn't make what he did any right!!!)

Just to clarify a few things...