On 11 November 1987, Batth and Sunder attended a prayer meeting held by Mahraz Darshan Das, 34, at Dormers Wells High School in Southall, London.

Sunder yelled at him in Punjabi: "what's all this, you dog" before pulling out his sawed-off shotgun from under his coat and firing at Das, missing.

Batth subsequently jumped up to the stage, retrieved his .38-caliber revolver from his waistband, and fatally shot Das in the back of the head at point-blank range.

[7] Batth claimed he purchased their guns for €250 from a man outside of a Sikh temple in Handsworth three months before the shooting.

[9] Halfway through the three-week-long trial, on 1 March 1989, Sunder pleaded guilty to the murder of Das and the manslaughter of Jaga Singh.

Later that month, after deliberating for five hours, the jury found Batth guilty of Das's murder, the manslaughter of Singh, and malicious wounding.

He then returned to India and was honored, along with his family, by jathedar Giani Harpreet Singh at the Akal Takht with siropas.