Former DAP member Hew Kuan Yau, who is popularly known as Superman, has been remanded for four days over an allegedly offensive Facebook post against Prime Minister Datuk Seri Najib Tun Razak and his wife Datin Seri Rosmah Mansor. Hew is being investigated for improper use of network facilities or services to make an offensive remark with the intent to annoy, abuse or harass another person.