Normally, if a person intends to commit suicide and his actions cause his death, it is a suicide even if the death does not take place in the way the person expected.

I think from this we can conclude that:
*He intends to commit suicide
*Due to him standing on top of the tower intending to die, the death is caused, thus his actions causing his death
*He becomes dead even if it wasn’t the way he wanted it to be

I’m gonna just conclude that it’s gonna be filed as suicide