Witnesses say the bandits fired sporadically around the prison premises located along Joseph Gomwalk road, opposite police headquarters.
Reports have it that the deceased was beaten to death by soldiers for violating the state curfew.
The committee has the mandate to find solutions to the clashes and killings in the state.
The legislators who visited hospitals where victims were being treated, condemned the killings.
Plateau House of Assembly has expressed concern about the wanton killings in the state and urged Governor Simon Lalong to act fast to end the bloodletting.
The Plateau governor said the perpetrators acted on their own and did not represent any religious, ethnic or social interests.
Plateau State has been under siege since some travellers were killed in the Rukuba axis of the state while on transit from Bauchi to Ondo State on August 14.
Mr Pantami said after speaking with top military chiefs on the matter, the president directed that the perpetrators be prosecuted.
A former councillor, Hassan Tukur, was killed by gunmen in Zamfara state on the same day Mr Adesina published his article.
The Arewa Consultative Forum (ACF) has condemned the renewed violence in Jos, describing it as a tit-for-tat action.