Police have yet to release picture of suspect more than 48 hours after the crime

More than 48 hours after the crime and Police have yet to released a picture of a suspect even as it appears that they have a good idea of the killer.

The Police have collected a large amount of evidence on the crime scene, they have numerous witnesses. They also have the CCTV recording inside the house and very likely lifted fingerprints from the abandoned Toyota Camry. However, it is unclear why they have not released a picture of the suspect as the killer remains at-large.

Five key issues remain unsolved:

1. What is the relationship between the victims and killer? Were they acquainted? There were no signs of break-in at the house.

2. What did the Tan family quarrel about previously that led to the Police being called in on 3 occasions? Are the quarrels related to the murders?

3. The older Tan Boon Sin left work early and retrieved some valuables from his safe deposit box. What did he retrieve? Are they connected to his death?

4. The place where the Toyota Camry was abandoned was only about 7 minutes walk from Tan's old workshop before it moved to Kaki Bukit. The car was not abandoned in a rush as it was parked properly. Did the killer purposely left it there?

5. The knife or weapon that killed the Tans still cannot be found.

Meanwhile, the occupants of 14J, Hillside Drive, where the murder occurred, has been vacated.