City & Crime learnt that the incident happened on Sunday morning.
Kingsley was said to have returned from a night journey and found his girlfriend with another man after peeping through the window.
A neighbour, Ogunleye Tunde, told our reporter that: “As soon as he discovered this, he forcefully opened the door, went to the kitchen and took a knife, killed his girlfriend and also attempted to stab the man, who fought back to save his life.
“The man was able to escape and he raised the alarm which drew the attention of neighbours to the incident. Kingsley fled afterwards.”
The mother of the deceased, Madam Anyawu Joyce, said the matter had been reported to the police, while her daughter’s remains had been deposited in a mortuary.
There was no reaction from the Nasarawa State Police Command on the incident as of the time of filing this report.