David Tumuramye 24, a resident Kigarama cell, Ngoma parish, Nyakisenyi Sub County in Rukungiri district attacked his family members and hacked them to death over a land dispute.
The incident occurred on Friday evening at around 9pm.
David Tumuramye who surrendered self to police, killed his 50 year old father Edward Bangirana, his mother Gaudensio Twesigomwe and their 11-year-old son only identified as Jordan using a machete.
Edward Bangirana and Jordan died on spot while Gaudensio Twesigomwe died shortly after being rushed to Kisiizi hospital.
The suspect is being held at Rukungiri Police head quarters