PETALING JAYA: The grandmother of William Yau Zhen Zhong, the six-year-old boy reported missing in Putra Height in January and later found dead, had quarrelled with his father Yau Kok Kang about a year ago, a Coroner's Court here heard Tuesday.
Chee Chong Moi testified that it was due to Yau's failure to give her money and it was a mother-and-son argument.
