Lawrence Njuguna, alias DJ Fatxo on Friday, May 11, wrote to the Directorate of Criminal Investigations (DCI) requesting the probe's findings into Jeff Mwathi's death publicised.
Through his lawyer, Duncan Okatch, the musician lamented that the delays had injured his reputation and well-being.
Various parties, including the deceased's family, had already begun speculating over the delays, further creating more tensions.
The DJ referred to statements by Mwathi's family, who alleged that the entertainer had colluded with the agency to cover up the alleged murder.
"We also note with concern that the delay in the discharge of your mandate has led to some unfortunate insinuations from the said parents. We believe that further delays may cement such perceptions, which from the parent's position may be plausibly understood and consequently propelled to the public.
"The latest concerns were from the parents of the late Jeff Mwathi and the same were prominently featured in the local dailies (print media, social media and mainstream television stations in the country," read the letter in part.
In the letter, Fatxo also documented how his life had reached a standstill over the rumours circulating.
Nonetheless, he reiterated his support for open and transparent investigations.
"The truth is the only aspect that can free our client as he is a captive of the assumptions and allegations.
"We believe that the panacea to the anxiety that has built up in the minds of the family, friends and relatives of the late Mr Mwathi on one part, and also the suffering and tribulations by our client on the other part, is the expedient discharge of your mandate and the communication of the same," read the statement in part.
Fatxo's letter to the DCI came days after the family of Mwathi claimed that the DCI was unresponsive in revealing the findings of its investigations.
They also called on President William Ruto to intervene as they sought justice for the interior designer.
DCI completed its investigations into the mysterious death on April 19 and submitted the file to the Office of the Director of Public Prosecutions (ODPP).
Notably, various reports indicate that the findings were inconclusive, with the police being more inclined to believe that the 23-year-old died by suicide as had earlier been reported.
According to preliminary findings, there was no evidence to tie the entertainer to the death of Mwathi that occurred on February 8.
The ODPP is yet to give the way forward for the case.
