The former chief of defence staff, Air Chief Marshal Alex Badeh,was shot dead by unknown gunmen.
The former defence boss was killed when his vehicle was attacked while he was returning from his farm along Abuja-Keffi road.
Alex Badeh is a retired four star flag officer of the Nigerian Air force who served as the 18th Chief of Air Staff from October 4, 2012 till January 16, 2014, and the 15th Chief of Defence Staff of the armed forces of Nigeria from January 16, 2014 to July 13, 2015.
The commissioner of police, Abdurrahman Ahmad made the declaration at a press briefing in Kaduna.
Ahmad said three of the 14 suspects were arrested for criminal conspiracy, kidnapping and possession of firearms,three over kidnapping, theft and receiving stolen property.