As the police unravel events leading to the murders of at least four people, a vehicle repair shop owner and his son – main suspects in the serial killings – led investigators to the workshop premises located in a sleepy hollow off Jalan Pahang here today, to facilitate investigations.

The duo, aged 57 and 20, were seen arriving at the scene about 10am, in a van and escorted by a police patrol car.

Both father and son, who remained in the parked van were believed to be assisting the police to locate spots where the remains of the four murdered victims were disposed off.

A visit to the workshop saw a backhoe being driven into the area, believed to be for the purpose of looking for the remains of the victims.

A Royal Malaysian Police tracker dog unit was also seen in the vicinity of the workshop.

Tapah police chief, Supt Som Sak Din Keliaw, who arrived about noon and left 30 minutes later, declined to comment on the case.

At press time, the two suspects were still helping the police at the crime scene. Journalists were barred from the area as investigations were underway.

Bernama learnt that initial police investigations pinpointed the man and his son as being the main suspects behind the killings.

According to the police, there was no evidence to date, to link other parties to the case.

On Oct 26, the police detained the two main suspects, together with the workshop owner's wife and another son, in connection with the murders of at least four people in Tapah.

The four were detained about 1.30pm, at a house in Jalan Pahang, following a missing persons report involving a 46-year-old male plantation worker and a property agent in Kampung Sungai Lah, Chenderiang near here on Aug 25.