Laertes tries to kill Hamlet and is successful.
Laertes is the son of Polonius and brother to Ophelia whom Hamlet loves. King Claudius poisons Laertes's sword with the intent to kill Hamlet in the tragedy play by Shakespeare titled Hamlet.
Because he and King Claudius planned it...they put poison on the end of the sword so that when Laertes stabs Hamlet, Hamlet dies. The motive also has to do with the fact that Laertes is avenging his father's (Polonius's) death, whom was killed by Hamlet.
Laertes conspires with King Claudius
He is afraid the overthrown suitor's parents will try to kill Odysseus.
Gertrude brings news of Ophelia's death to Laertes and Claudius as they plot against Hamlet. This revelation deeply affects Laertes, intensifying his desire for revenge against Hamlet, whom he holds responsible for his sister's tragic fate. The news serves as a catalyst for the unfolding conflict and further complicates the dynamics among the characters.
Claudius and Laertes plot to kill Hamlet.
Hamlet didn't write any letters to Laertes--ah, you mean "Did Claudius read the letter Hamlet wrote to Claudius out loud to Laertes?" I confess that it is difficult to phrase this question so it is unambiguous. Yes, Claudius reads the letter he got from Hamlet out loud to Laertes and asks whether Laertes can explain it.
They have different motives. Claudius wants to keep his crime a secret, and Laertes wants revenge for his father's death.
Laertes poisons his on blade in order to kill Hamlet.
This would be Laertes.
Claudius knew. That's why he conspired with Laertes to kill Hamlet first.
They planned to kill prince hamlet with a posioned foil