It is unlawful to jump off a building.

The Law Explained

Aside from the obvious fatal consequences, New York passed a law explicitly prohibiting jumping off buildings to deter stuntmen and extreme daredevils. Historically, if someone survived a jump or an attempted stunt, they could be arrested and charged immediately upon landing. The punishment for a successful jump that resulted in death was, bizarrely, written as the death penalty in some early municipal drafts.