The news and the pictures of his girlfriend's engagement ceremony went viral -- close friends told the US local media that "he became depressed" and the situation was "quite difficult for him".

Ayinza reportedly committed suicide and his body was found at a state cemetery in Massachusetts, US, where he was currently living.

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"The woman is said to be a US citizen as well. She returned to Uganda recently to visit her family but the fact is that she had planned to get married to her other lover. This left him (Ayinza) really reeling," USA media reports

His family says "we cannot pin anyone" because "police are still investigating the real cause of death".

"Until police furnish us with full details, we cannot pin anyone. But all I can confirm is that Ayinza is dead and his body is in police hands," pastor of a church where Abel was being nurtured said.