Vacuum has emerged in the criminal world, after leader after leader has been sentenced to long prison terms when encrypted services are cracked by the police.

- This means that younger people now want to take over, when they know that the older ones are gone for a long time to come, says Salihu.

In recent times, there has also been a shift in gun violence, from large cities to smaller cities around the country.

- This is partly because there has been a shift in power, but also a drug trade that is very widespread in the country, the crime reporter says.

- It creates conflicts and makes people resort to extreme violence to shoot someone rather than being shot themselves.

As more criminals moved to smaller cities, firearms violence also followed as rivals sought out their enemies.