He was the second presidential aide to be taken away by death, days after chief of staff, Mallam Abba Kyari died.
According to a statement by Femi Adesina, Mato had struggled with diabetes in the last three years.
Mato had worked with Buhari for many years.
The President described the officer as “very thorough, trustworthy and dependable soldier who carried out his duty with diligence and focus.’’
President Buhari prayed that Allah will ease his passage to paradise and grant his family, government and people of Jigawa State, the fortitude to bear the loss.
WO Mato was part of a team that former President Umaru Musa Yar’adua restored to President Buhari as personal security and he had been off duty for three years, treating diabetes.
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