Die

Are you dead?

No, you aren't, stupid. How could you read this if you were dead?

Did you get killed?

No, you didn't, stupid. How could you read this?

So, you haven't been killed by anyone claiming to be the incarnation of death.

The classical logical fallacy: No-one who reads this can be dead; therefore no-one has been killed by an incarnation of death.

Therefore: Incarnations of death are harmless.

Conclusion: Never Trust Anyone Who Doesn't Say He's Death^®

Precautions to take: Kill everything cute / innocent looking around you. Kittens are especially dangerous, but they have lots of uses as well.