how does laertes' desire for revenge similar different from hamlet's? how is it different?

Laertes thinks his father has been killed much like Hamlet thinks his father has been murdered. So the revenge for one's father is similar here. Laertes hasn't been informed by some divine interference as Hamlet was. While Hamlet muses seemingly endlessly about the nature of life, death, revenge, his mother.....Laertes simply wants revenge. Laertes isn't even knows who he is supposed to kill while Hamlet goes to elaborate lengths to make sure his uncle is truly guilty.