[member="Nulgath Zardai"]
As [member="Valik"] explained, yes, you can do this. The long answer is that only the writer owning/controlling the character can dictate what injuries that character sustains (including and up to death). Since you own that character, you can do anything you want with him/her.
Additionally, and as Valik explained, if you're doing this to try to get access to some restricted material, this is typically frowned upon because it's very easy to cheese the system. You could, for example, write a Dev Thread that's a handful of posts long and "kill" a character to get access to cortosis. I am willing to bet money that most Factory Judges would not accept that type of Dev Thread. However, having said that, if you do write a giant, 50,000 word Dev Thread with just your characters, or some other high quality writing, then that could be acceptable. It's always the quality of the Dev Thread that counts.