Start to doubt it's Celine, Because at start i think it's her because she look bit creepy and kept talking about healing stuff.
Kim and Lindsey who already know Joe shot Phoebe, probably one of them kill phoebe to silence her. I'm not sure about Tegan since she ask Kim to give phoebe for medicine or stuff i can't remember. Lindsey is the one who is a real doctor unlike the snugglepuss. Sophie Austin once said she don't want lindsey to be killer but oh well. I hope silas is back but i'm sure his intention to kill a female only.
Kim and Lindsey who already know Joe shot Phoebe, probably one of them kill phoebe to silence her. I'm not sure about Tegan since she ask Kim to give phoebe for medicine or stuff i can't remember. Lindsey is the one who is a real doctor unlike the snugglepuss. Sophie Austin once said she don't want lindsey to be killer but oh well. I hope silas is back but i'm sure his intention to kill a female only.





and being affected by her sister and what have you, that all could have quite easily over time driven her over the edge - generating a willingness to "put people out of their misery". Personally I'd find that quite a compelling direction for things to go, though doubtless it'll be something completely different.