Angry youths were said to have stormed his house, killing him alongside his wife and son, Daily Trust reports.
Aruwan described the mob action as a response to the deceased family’s suspected collaboration with bandits, especially in relation to recent kidnappings in the area.
He added that after killing the trio, the mob looted and burnt their home.
He said on receiving the reports, Governor Nasir El-Rufai expressed his sadness and deep worry at the violent actions of the citizens, and strongly condemned the extra-judicial killings.
He stressed that lawful means alone should be adopted in confronting suspicions of criminality, as the destructive practice of self-help would only result in greater harm.
He said the state government had directed security agencies to conduct a thorough investigation into the incident, and urged citizens to maintain order.
He cautioned against stereotyping of any sort and appealed for consistent recourse to the constituted agencies as investigations into the incident are in progress