Kuala Lampur, Jan. 21 -- The country was recently shaken by the arrest of a medical doctor accused of killing his wife and young son.

A man entrusted with healing is now alleged to have extinguished life within his own home.

Not long before that, in Melaka, a 17-year-old boy allegedly stabbed his mother and elder brother to death and seriously injured his younger sibling.

Early reports suggested that the attack was preceded by intense emotional strain because he was sitting for his SPM examinations and had been repeatedly scolded at home.

These tragedies revive the memory of an older horror, the 2010 Gemencheh familicide in Kampung Batang Rokan, where four members of a single family were brutally killed.

Separated by time and circums...