The lawyer, Mr Wanyama Wanyonyi, was shot dead after he alighted from his car to open the gate to his home at Sunrise Estate in Bungoma town shortly after midnight.
Neighbours said they heard gunshots and went to check only to find the lawyer lying in a pool of blood outside his gate.
He had multiple gunshot wounds and died on the spot. Nothing was stolen from him.
Wanyama represented Kombo in the petition alongside lawyer Alfred Ndambiri.
The court is set to rule on the petition on September 30.
Western provincial police boss Mr Alfred Ombaba confirmed the incident saying police have launched investigations into the matter.
He said police recovered three spent cartridges fired from an AK 47 rifle at the scene.
The wife to the deceased Mrs Barbra Wanyama said she was called by a neighbor who told her that her husband had been attacked.
“Nothing was stolen from him. Sh10,000 that he had was intact and his Smartphone was also at the scene,” she said.
Bungoma Governor Mr Kenneth Lusaka accompanied by former Justice Minister Eugene Wamalwa and Kombo who is former Webuye MP visited the family.
Mr Kombo said it Is hard to see people around him losing their lives.
Bungoma Senator Moses Wetangula condemned the killing said crime in Bungoma County was on the rise.
“The county has lost many lives. Many people have been disabled and property lost through uncontrolled criminal activity. I condemn in the strongest terms possible the shooting of lawyer Wanyama and urge security agencies to carry out thorough investigations and ensure perpetrators of heinous crime are apprehended and made to feel the full force of law,” Mr Wetangula said on phone.
He added: “This attack and loss of life of lawyer Wanyama is one too many for our county and cannot be accepted or tolerated.”
Mr Wetangula sent a message of condolence to the bereaved family and assured them he “will do anything possible within my competence to assist in getting into the bottom of this.”
