Edward was an Erudite who later transferred to Dauntless along with Tris during the Choosing Ceremony. He was the best among the initiates in hand-to-hand combat, ranking even higher than Peter.
The night after the rankings were posted, Edward was stabbed in the eye with a butter knife.
Tris deduced that Peter and Drew did it as they were both missing from their beds that night. Tris bravely helped Edward by preventing too much blood loss on his eye with her hands and later comforted him.
Afterwards, Edward left resulting in him being factionless, seeing as his injury would hinder him from going through Dauntless initiation.
Myra, Edward's girlfriend, also in the same initiate class and one of the last ranked leaves voluntarily with him.