"I picked up a call from a new number, but the caller stayed silent. I thought it was a customer, but after 15 minutes, I heard a knock on my door," Kimani recalled.
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When he opened the door, five armed police officers entered and pushed him back to the house.
He described how one of the officers struck him in the head with the butt of a gun, knocking him to the ground.
Kimani denied the prosecution's claims that officers who stormed his house, RJoan Enterprises in Kinoo, recovered a Ceska pistol belonging to Muchai's bodyguard, with the firearm's serial number allegedly erased
"Despite a thorough search of my rented house, the officers found nothing of interest," Kimani told the court.
The court heard that after they failed to recover whatever they were looking for, one of the officers questioned him about the Sh30,000 sent by Muchai's driver.
The officer, in Swahili, allegedly asked him, 'Ndereva wa Muchai alikutumia pesa ya nini?' or 'What did Muchai's driver send you money for?' Kimani admitted to receiving the payment but insisted it was for a meat order, not for any criminal purpose.
He said that he was later handcuffed, and bundled into a waiting car before a sack was put covering his head and the upper side of the body.
The police took his Techno and Nokia phones and took him to Nairobi area.
At the station, they continued to interrogate him about the money which was sent via the number alleged to be of Muchai's driver who he persistently claims not to know and who he was. He thought he was a customer like others,
"I received the money for the order, but I had no personal dealings with Muchai's driver. I only assumed he was a customer," he reiterated.
"I used to receive many calls and acknowledged them as customers since no other interaction I used to have with them."
Kimani also stressed that the transaction was handled by his employees, John Ndegwa, who died in 2021, and Francis Kamau, who he claims he has lost contact with over 10 years.
The prosecution's case against Kimani and his co-accused has been built on circumstantial evidence linking them to the murder.
Kimani further added that the arresting officers relocated him several times to the Railways Police Station and then took him back to the Nairobi Area.
In the station, he said police took him to Rhodes Hospital to have his blood samples taken but the attendant refused requesting the order from the court.
They also took him to Mbagathi Hospital seeking the same but the attendants refused demanding an order from the court.
Kimani was eventually presented before the court, where the Magistrate ordered that he be taken to the government chemist for DNA sampling extraction and treatment for head injuries sustained during his arrest.
While urging the court to acquit him, Kimani who is facing robbery with violence charges and murdering of the former Kabete MP George Muchai consistently denied meeting or working with his co-accused, asserting that he was not part of any criminal group.
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"I am innocent. I did not know the other suspects. I have never met any of them," Kimani said in court.
The co-accused include Eric Isabwa, Mustapha Kimani, Stephen Astiva, Jane Wanjiru, Margaret Njeri, and Simon Wambugu.
Kimani who has since been put in his defense told the court that he is innocent and he came to know the reason for his arrest during a miscellaneous application in court seeking his detention.
On March 19, 2015, he told the magistrate that he was astonished when he was charged in court alongside six others with offenses of having a firearm without a license and having 15 rounds of ammunition.
This after investigation officer Sergeant Moses Otiu Opiyo attached at DCI headquarters Serious Crimes Unit told the court that Isabwa and his co-gangster Kimani stole a Ceska pistol belonging to one of Muchai's bodyguards Lekakey which they erased the serial number to conceal its identity.
The case, which has been ongoing for years, saw the prosecution call 36 witnesses, including police officers, civilians, and experts, all of whom have linked Kimani and his co-accused to the violent crimes.