Suppressed feelings

The recent NTU stabbing cum suicide incident involving a final year student from Indonesia who stabbed a lecturer and later fall to his death shocked the campus community. No one knows for sure what exactly caused the student David Widjaja to snap and did the unexpected. According to the press and new reports, the deceased is an above average student whose grades deteriorated lately resulting in the termination of his scholarship.

I believed David Widjaja case is of one which has it core and root problem in suppressed feelings.
It is possible that this student is overwhelmed with stress and has been suppressing his anxieties for weeks or even months up to the day leading to the explosive uncontrollable actions. Suppressed feelings has tremendous impact to our biological stress hormones and prolong stress could adversely impact a person thoughts and reasoning.

People who are able to cry, hug one another, network with one another and be open about their feelings of sorrow and heartbreak had lower level of stress hormones in their urine and less vulnerable to heart disease compare to those who suppressed their feelings. Those who were withdrawn and buried their feelings of heartbreak and constantly live in state of self denial had high levels of stress hormones. Prolong bottom up feelings could eventually lead to chronic depression, heart attack and mental breakdown as it is the case with David Widjaja.