Allegiant by Veronica Roth

SPOILERS

When Tris goes into the Weapons Lab instead of Caleb she finds the person she saved David standing before her with a gun. He shoots her several times and eventually she collapses to the floor. When Tobias finds out he vows to give up guns and becomes a politician. I think that the characters were very strong and the book was very descriptive, I really enjoyed this book however I think that it was not the best of the series, and that it could have been better.