El-Rufai was said to have sacked Usman last week after he was found guilty of many allegations including shortchanging some friends of the governor and other domestic staff of the government house and also mismanaging funds meant for his colleagues, Leadership reports.
According to a trusted source at the government house, the sacked ADC was also found guilty of causing disaffection and misunderstanding between the police and men of the State Security Service (SSS), among other issues.
It was learnt that Governor Rufai was disappointed over Usman’s behavior, which led to his removal.