I think the family altered ‘gardia’ when the friend returned home but the police in Spain don’t open investigations until a week later. I imagine the friend situation to be pretty clear cut they’ve no doubt had an argument and the mate returned home - this has happened to so many ppl I know. The hotel weren’t willing to check his room until his check out date either which is crazy imo - pretty sure the cleaners go in to clean the room throughout the week?