A 19-year-old addict hit his wife with a guitar after suspecting her of having an affair.
China Press reported that the man, who is jobless and often took syabu, checked his 20-year-old wife's mobile phone and discovered her conversations with another man on WeChat at 7.30pm last Friday.
He hit her repeatedly when he confronted her at their home in Kampung Sungai Buloh in Semenyih, Selangor.
Kajang OCPD Asst Comm Willey Anak Richard said the man fled after the assault but returned at 2am the next day and was arrested.
The woman, who works in a motorcycle shop, suffered light injuries on her back.
The couple had been married for a year and has no children.