Solved Make a player damage another

Is there a way to make a player damage another. I do not mean player#damage(amount) because that just damages. I mean damage in such a way that, for example, if a player dies the damager is returned on #getKiller.

And if this isn't possible, is it possible to KILL completely another player by this player (instead of just damage)?

One solution was to call a new entity damage event but I am not completely sure how that works.

Thank you for any reply or help.

NEVERMIND! It worked! I'm gonna keep this here for a future traveler.

Code:

Bukkit.getPluginManager().callEvent(new EntityDamageByEntityEvent(damager, damagee, EntityDamageEvent.DamageCause.ENTITY_ATTACK,5));

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

EDIT: WOW, no one told me and I am so dumb!
One can simply do

Code:

entity.damage(amount,source);