The Defence Headquarters have concluded the Tuesday attack on the Nigerian Defence Academy was some kind of armed robbery, though two officers died in the process and the bandits abducted one.
A leaked memo confirmed five flats on the same block were robbed.
May had put the attack down to terrorist action or bandit strike.
The memo added the response time to distress call was slow.
“The bandits successfully broke into five different flats in the same block and swiftly withdraw before the intervention of troops,” the memo read.
Chief of Defense Staff General Lucky Irabor described the attack as “madness”.
“The incident in Kaduna has been undertaken by bandits, but it’s more of an armed robber coming to your house. The infiltration didn’t come by virtue of the normal banditry action. But these are things we’re already looking at, and in due course, you’ll get the details,” he said.
“Suffice to say, any form of insecurity is a cause of worry for anyone. That’s why for us, we’re more determined that this madness must be brought to an end very swiftly.”
Military watchers have criticised the lax standard operating procedure in many military facilities across the nation, saying it makes profiling easy for criminals.