Wally West was killed off in Heroes in Crisis, which kicked off the series' mystery.
1 / 9
This came as a major blow to fans of the character.
2 / 9
An unpublished cover draws sympathy for both Wally and Barry Allen.
3 / 9
The cover features Barry holding Wally's dead body, while also crying.
4 / 9
Series writer Tom King rightfully calls the cover "heartbreaking."
5 / 9
Fans would eventually learn the truth, but the cover is still quite powerful.
6 / 9
The cover shows that even heroes are vulnerable.
7 / 9
Heroes in Crisis # 9 goes on sale May 29.
8 / 9