Millie said the broad-based government arrangement will not deter them from speaking the truth about Were's death.
"The person who killed Were was very conversant with government systems. His methods of shooting and the manner he shot tell us a lot. They must tell us who killed him," Millie said.
Kaluma said the future of their collaboration in the broad-based government will depend on how the government is going to handle Were's death.
"I want to join my fellow leaders who have spoken that unraveling the people who killed Were and those who sent them will determine whether our collaboration in the broad-based government will continue or not," Kaluma said.
He said the government had the capacity to arrest Were's killers and prosecute them.
"The government has long hands in dealing with criminals. We want to see the long hands of the government working in unraveling Were's killers. Let us not see the short hands of the government in this matter," Kaluma said.
Homa Bay Senator Moses Kajwang said they will not allow anybody to trivialise investigations into Were's death.
"We lost a gallant leader in a very unfortunate murder. Let our investigations agencies take this matter seriously, and we will not relent to give them pressure," Kajwang' said.
The National Assembly Minority Leader Junet Mohammed, Kabondo Kasipul MP Eve Obara and Homa Bay Woman Rep Joyce Osogo called for justice.
The leaders said justice must prevail for Were's family.