British Prime Minister Theresa May has told her Cabinet that "a major national investigation" should take place into the use of cladding panels fitted onto buildings across the country. The aluminum composite panels are widely used to help insulate buildings and improve their appearance. At an inquest into four victims of the June 14 inferno at Grenfell Tower, which killed at least 79 people, Westminster Coroner's Court officer Eric Sword said Paulous' preliminary cause of death was "inhalation of fire fumes."