Quoting local residents, Spanish media said the tragedy was likely linked to a fake online love affair. MADRID, Spain — Spanish police on Monday said they had arrested a Pakistani man in connection with the killing of three siblings in their 70s, over debts reportedly linked to an online romance scam. The 43-year-old suspect had "turned himself in" on Sunday night, "admitting his involvement in incidents related to the triple murder in a house in Morata de Tajuna", a police statement said. Judicial sources said the suspect had previously been convicted for attacking one of the sisters. Police had on...