Prabhakar K and his son Samarth had come from Belagavi on Tuesday night by a government bus to enroll their son in a private school here in Kaup (Udupi dist).
On September 14 morning, a 16-year-old minor boy was driving the goods lorry which hit the father and son duo in Uchilla resulting in the death of both of them.
Prabhakar and his son Samarth when they were standing on the side of the NH-66 when the accident occurred.
The man died on the spot, while his son, who was critically injured, died at a hospital on Thursday.
Shekar, driver of the lorry revealed that a 16-year-old boy working as a cleaner in the lorry was driving the vehicle at the time of the accident. The boy had a fantasy to drive a lorry and had done so on earlier occasions.