The bodies of the 32-year-old woman and the boy were found on the first floor landing.
Cheras Police Chief ACP Chong Kok Sin said the woman’s husband told police that she was suffering from depression.
“Her husband, aged 28, a real estate agent, had once brought his wife to get psychiatric treatment at University Malaya Medical Centre (UM) sometime in May or June.
“According to her husband, she had always said she wanted to commit suicide,” he told reporters here today.
He said just before the incident, his wife had informed her husband that she wanted to throw some rubbish and that the family was preparing to make a trip to Karak, Pahang.
“She had brought her son along. After about five minutes, the husband asked his daughter to join them at the parking lot while he packed the bags.
“He then heard loud thuds and when he looked down from the corridor of his unit, saw their bodies sprawled on the first floor landing,” he said, adding the woman and her son were believed to have fallen from a lounge for residents at the floor, which had four-metre-high sliding glass windows.
The bodies were sent to the UKM Medical Centre for a post-mortem.