Young Man Sentenced to Six Years in Jail for Killing Abusive Father in Yishun

In October 2022, Seah Jie Kai Sylesnar, 19 at the time, fatally attacked his 47-year-old father near their home at Block 653, Yishun Avenue 4. The attack occurred after years of abuse and a heated argument where Seah's father mocked and provoked him, triggering the young man’s violent response.

According to court documents, Seah’s father had a history of alcohol abuse and was physically and verbally abusive toward his wife and children. Over the years, Seah endured his father’s taunts, canings, and emotional abuse, which eventually culminated in the deadly confrontation. The father’s frequent threats and past gang involvement heightened Seah's fear that his father would one day kill him.

On the evening of October 10, Seah's father provoked him by calling him a slur and asking if he dared to use a knife. Enraged and terrified, Seah grabbed two knives and confronted his father near the lift at their block, slashing him repeatedly. Despite attempting to stop the fight and expressing remorse, the father collapsed from his injuries. An autopsy later revealed 24 wounds, mainly on the head and neck.

Seah, overwhelmed by the gravity of his actions, laid beside his father after the attack and called for help. Despite the abuse, the court emphasized that violence was not a justified solution. Prosecutors acknowledged the difficult circumstances Seah endured but stressed that taking a life cannot be condoned, regardless of the situation.

Seah’s mental health was also a significant factor in the case. Diagnosed with chronic adjustment disorder with a depressed mood and “other specified depressive disorder” (OSDD), Seah's mental state was found to have impaired his ability to control his actions and comprehend their wrongfulness at the time. However, psychiatrists noted that Seah’s mental health had since improved and his risk of reoffending was low.

In sentencing Seah to six years in jail, Justice Dedar Singh Gill took into account the young man’s age, remorse, and mental health. The judge noted that Seah was unlikely to commit a similar offense in the future and allowed him a few moments with his family before he was taken into custody. His mother, sister, and brother were present at the hearing, with his mother breaking down in tears after the sentencing.

Culpable homicide not amounting to murder carries penalties of life imprisonment with caning, or up to 20 years in jail, a fine, or caning.