The Deputy Director, Uganda Nurses and Midwife Council is dead.
Margaret Nyakuni Onzia, 66, died in an arson incident at her home in Bugonga at 3am.
Her son, an Assistant Superintendent of Police (ASP) Edward Bua, a police officer and lawyer has been arrested in connection to the murder.
Kampala Metropolitan Police (KMP) has confirmed the incident in a statement.
According to KMP Deputy Spokesperson Luke Owoyesigyire, it is alleged that ASP Bua locked his mother inside the bedroom before locking the main house and later setting it a blaze at around 3am this morning.
Upon his arrest, Owoyesigyire said a match box was recovered on him.
He is currently detained at Entebbe Police Station as investigations go on to ascertain his motive, Owoyesigyire said.
The body of Nyakuni has been conveyed to city mortuary Mulago for a post mortem.