This is the most I can reveal.
The man who is able to help Police in the investigation would be
1) around 20 years of age
2) about 1.65m~1.75m
3) may be NSF
4) wearing jean, green Casio watch
5) wearing a black Polo shirt with a red color AIRBORNE logo on the left chest. (maybe from commando)
8) a bit Ah Beng attitude