Joel Komakech's parents believed he was mature enough to marry
The incident happened in the northern Ugandan district of Lamwo on Monday evening.
Joel Komakech hanged himself on a tree branch after disagreeing with his parents over marriage.
Quarrelled with parents
Komakech apparently disagreed with his parents and protested their plans of forcing him to marry, according to NTV Uganda.
A police report says he had earlier that day quarrelled with his parents over the same saying he wasn't ready to tie the knot.
Authorities said: "We got reports that his parents wanted him (deceased) to marry a woman because he was already mature. There were several meetings instituted at home in which the deceased was accused of delaying to marry but he protested that he wasn't ready."
Local police say an autopsy was done on the deceased's body and have started investigations.
They say they never expected Komakech to kill himself because of the pressure to get married.