Justice Joyce Abdulmalikof the Federal High Court, Abuja, has ordered that the nine suspects arrested over the killings in Yelwata, Benue State, be remanded at Kuje Correctional Centre pending trial.
The Federal Government arraigned suspects on Monday.
Leading the prosecution for the arraignment of nine suspects was the Attorney General of the Federation and Minister of Justice, Lateef Fagbemi (SAN).
The suspects were arraigned on a 57-count charge.
They pleaded not guilty when the counts were read to them through an interpreter.
Earlier, the office of the Attorney General of the Federation and Minister of Justice assured Nigerians that justice would be served in the matter, sending a strong signal to enemies of the country acting under any disguise.