Cops investigate after man kills himself, grandchild

The man’s mental health has come into question after he set his car alight with himself & the boy (4) inside.

A grandfather allegedly kidnapped his grandson and set the car alight on 8 April 2015. Picture: EWN.

JOHANNESBURG - Police say an elderly man's mental health and his relations with his family will form part of their investigation to establish what drove him to set his car alight in Azaadville, west of Johannesburg, taking his life and that of his grandchild.

The man called the four-year-old boy's parents shortly before the incident yesterday, warning them of his intentions.

Police say community members spotted a vehicle on fire about a kilometre away from his house.

Spokesperson Kay Makhubela says efforts to extinguish the blaze failed as the two had already burnt to death.

"They're really being questioned and asked when last they had differences or if there was some form of disturbance, and then we'll investigate that and see what the problem was."

Police say the little boy was left in the care of a domestic worker and the grandfather when the parents left for work yesterday morning.