Trouble acceding e.data.someproerty after a facebook login

How can I access the e.data that facebook sends as a response after login in with facebook,

I can do:

Ti.API.info('e.data ' + e.data);

and get:

{"id":"1XXXX773646867X","name":"No Neo","first_name":"Neo","last_name":"Nvo","link":"https:\/\/www.facebook.com\/no.no.1","birthday":"01\/01\/1990","gender":"male","email":"mail\u0040gmail.com","timezone":-6,"locale":"es_LA","updated_time":"2014-02-28T17:47:58+0000","username":"no.ne.1"}