Mwathi fell to his death in DJ Fatxo's 10th-floor apartment located along Thika Road under unclear circumstances.
Reports show the victim had spent the day with the popular DJ.
"I have met with DJ Fatxo, and we are now along Kiambu road. He wanted me to design his shop, and we will talk about money tomorrow so that I can get started," he said.
He also sent his mother several videos from his day with Fatxo up until the last video he sent while at the DJ's apartment moments before his death.
CCTV footage also revealed that Fatxo, Mwathi, and three ladies went to his apartment after spending time together at three different clubs.
According to Mwathi's uncle, Fatxo and the three ladies left the house at around 4 am leaving Jeff in the house with two other men.
"The two men also left the house and went down to the parking, and looked over. Fatxo's cousin was also seen making a call, and then Jeff fell from the 10th floor," he said.
The family is now demanding justice, saying their son did not show any thoughts of harming himself, as the police were told.
According to the police report, Fatxo reported saying Mwathi jumped from an open window of his bedroom.
Mpasho.co.ke reached out to Fatxo but his phone number was off.
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