By Sujin Thomas

THE final moments before Nanyang Technological University (NTU) student David Hartanto Widjaja fell to his death were captured on a mobile phone by a fellow faculty mate.

Fourth-year electrical and electronic engineering student Lin Zhenxing was waiting for the lift with a friend, Mr Liu Yan, when they spotted Mr Widjaja - alleged to have stabbed his final-year project supervisor, Associate Professor Chan Kap Luk, during a meeting - sitting on the rooftop of a link bridge three floors below them.

Mr Lin whipped out his mobile phone to record Mr Widjaja through a glass window, for about eight seconds, before he called campus security using the phone.

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