A local family is demanding answers from an ambulance company. William Scanlon’s family said they have a number of questions after he died on his doorstep when he was transported home from the hospital. They say he needed oxygen to breath, but that for some reason, when an American Medical Response ambulance transported him back home Saturday morning, with temperatures hovering near zero, not only was he not hooked up to oxygen, they say the ambulance crew also made him walk. … AMR said it expects to finish up its internal investigation soon. The family said they’ve already met with a lawyer and are filing a lawsuit against the company.