Datuk Seri Najib Tun Razak and Datin Seri Rosmah Mansor visited the Langgar Royal Mausoleum in Alor Setar, Kedah on Friday to pay their last respects to late Tuanku Abdul Halim Mu'adzam Shah Ibni Almarhum Sultan Badlishah. The Prime Minister said the late Sultan was like a father to him.