Mexican musician's family massacre: suspect detained, reconstruction details emerge

Mexican authorities have reconstructed the hours around the massacre of musician Jonathan Meléndez's family, with Argentine Diego Rosen, 51, a business partner, detained for the multiple murder. The case is in early judicial phase; details of motive and evidence remain unconfirmed. The brutality (even the dog shot) signals organized-crime-style violence, raising questions about cartel links or personal dispute.