“Coach Mabo loved people and promoted peace, unity and oneness irrespective of ethnic, religious or political considerations,” Mr Lalong said.
Investigations by the police revealed that the syndicates had operated in Plateau, Nasarawa, Bauchi and Gombe axis for years.
“I expect that you will, in turn, shun any act that oppresses the people or puts undue pressure on them,” said Mr Lalong.
Bryan Luka, the representative of the affected families, appealed in an interview on Wednesday in Jos, the state capital.
A community youth leader alleged that the killing was a reprisal attack following the killing of three Fulani youths in the community.
The police command in Plateau has arrested an inspector, Solomon Damak, for shooting a man, Nyommena Salah, over an election argument.
The thugs invaded the venue on Monday and chased away the officials of Independent National Electoral Commission (INEC).
The election was delayed on Saturday.
He also said that voting was still ongoing in several polling units in Jos North, Jos South and Mangu Local Government Areas.
Imo State Zoo
