A family row at a temple turned violent when an unemployed man stabbed his brother in the back.
Daniel Lim Wei Qiang, 25, launched the knife attack after his elder sibling tried to intervene in the argument.
On Thursday, he was sentenced to six months in jail for voluntarily causing hurt.
The court heard Lim started the row by shouting at his father, who was preparing for prayer rituals at the temple in Paya Lebar Road. After getting out of his car, he told the older man he wanted to stab him.
The brother then threatened to call the police if there was any more trouble.
Lim pulled out a knife and stabbed the 28-year-old in the back, before driving off.
A psychologist's report found he was suffering from Adjustment Disorder and felt depressed at the time of the Feb 16 attack. But he was mentally sound and knew what he was doing, the district court heard.
The Institute of Mental Health report added that Lim had been involved in gangs since his teens and often got into fights.
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