It was just a tragic accident.

这只是一场悲惨的事故。

《柯林斯英汉双解大词典》

He was killed in a tragic accident at the age of 24.

他24岁时在一次悲惨的事故中丧命。

《牛津词典》

She met a tragic and untimely death at 25.

她于25岁时不幸猝然辞世。

《牛津词典》

A White House spokesman said President Obama viewed Michael Jackson as a spectacular performer but noted that his life had sad and tragic aspects.

VOA: standard.2009.06.26

The very idea that a figure so virtuous could have been dealt such a tragic and early death strikes Milton, or Milton's speaker here, as the rankest injustice.

这么贞洁的一个人竟然会这么早,就如此悲惨的死去，这极端不公平使弥尔顿，或者是诗中的讲述者，震惊。

耶鲁公开课 - 弥尔顿课程节选

It was a tragic--It was crushed by the weights of the electrodes.

是个悲剧,被电极的重量给压死了

耶鲁公开课 - 心理学导论课程节选

It was a tragic loss of a gifted and talented human life.

FORBES: Aaron Swartz' Suicide Forces Hard Questions About The Criminal Justice System

Seven-year-old Yaseen's death at his home in Cardiff in July 2010 was believed to be a tragic accident in a fire at first, and it was only later that investigators found he was dead before the blaze began.

BBC: Yaseen Ali Ege

"This is a very tragic case with a lesson to be learnt, " said Mr Howes.

BBC: Pills and bottle