The Inspector General of Police Joseph Boinnet has warned Bungoma Senator Moses Wetangula against spreading rumours concerning businessman Jacob Juma's murder.
Boinnet has instead asked Wetangula to record a statement with the police on what he knows.
In a statement, Boinnet noted that Wetangula was a long time lawyer who should separate facts from hearsay.
"We expect Wetangula to discern credible facts from ordinary hearsay. He should, therefore, inform the police as soon as possible for appropriate action," said the statement.
It said the police were doing everything possible to bring Juma's murderers to book.
"A team of experienced detectives have been assigned to the case to follow it diligently with a view to arresting and having those involved in murder charged in a court of law," he added.
Wetangula, speaking in Uasin Gishu on Tuesday, sensationally claimed that he knows the people behind Juma's murder and that he would reveal their names on Saturday during Juma's burial.
"Juma called me three weeks ago and in our meeting he told me that his life was in danger because there were people he knew that were planning to kill him. He gave me their names which I will reveal on Saturday during his burial," Wetangula said.