MADRID, July 8 (Reuters) – Spanish police said on Thursday it detained a fourth suspect over the killing of Samuel Luiz, who was beaten to death in the northern city of A Coruna on Saturday in a suspected anti-gay hate crime that sparked mass protests across the country. “He is a man between 20 and 25 years old and he is accused of homicide and undue appropriation,” Spanish national police said on its twitter account on Thursday. The man is a friend of the three other suspects, who were detained earlier this week, a police officer told Reuters. read more He is suspected of taking Luiz’s mobile phone. Luiz, a 24-year-old nursing assistant, was killed in the early hours of Saturday outside a nightclub. A witness told La Sexta TV station Luiz’s assailants shouted homophobic slurs during the beating.