Lori's death was a true surprise not only because she went into labor after a walker attack, but Carl then was forced to kill her. The fact that it took place so early in The Walking Dead Season 3 made it even more surprising and revealed that truly no one was safe on the show.
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Look out, world. Lori has a gun and is unafraid to use it.
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Dale comforts Lori in this scene from The Walking Dead. It's courtesy of the episode "Secrets."
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Lori comforts Rick in this scene from The Walking Dead. It's courtesy of the fourth episode of season two.
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Lori is a worried mother and wife trying to protect herself and loved ones from the living dead.
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Lori Grimes is Rick's wife, and fighting for her life during the zombie apocalypse.
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The Walking Dead Quotes

You walk outside, you risk your life. You take a drink of water, you risk your life. Nowadays you breath and you risk your life. You don’t have a choice. The only thing you can choose is what you’re risking it for.

Hershel

When you care about people, getting hurt is kind of a part of the package.

Beth