Well could be. If you recall when the Governor and his new group with Tara invaded the prison after killing Hershel. All these zombies came walking into the area. The camera was so focus on 1 particular female zombie. She had a long dark hair and was wearing a torn up dark leather jacket. Also facial features. She looked like a dead ringer for Lori, Rick’s wife. I found it odd tge camera kept focusing off and on with this zombie than the others. So now with the zombie in handcuff, who knows perhaps it was Andrea.
That was Clara, the crazy Irish chick who wanted to be with her husband, Eddie (who was just an animated head at that point). They kept focusing on Clara to show that she was still around after she had stabbed herself in the abdomen to kill herself to be with Eddie.
Andrea I’m pretty sure shot herself in the head and did not turn into a walker. They gave her a gun, she knew how to use it, and we heard the shot. They didn’t mention her at all in last night’s Talking Dead, and I think they would have had that been Laurie Holden/Andrea.