Yusuf Mugweru, one of the heirs of retail firm Tuskys now claims ousted CEO Dan Githua fired more than 2,000 long-serving employees and hired relatives.
This, he said, coupled with conflicts of interest between Githua's firm and Tuskys contributed to Githua's sacking.
Mugweru claimed the board sacked Githua but an earlier statement
to the Star by chairman John Kago stated the chief executive was suspended pending a probe into his operations.
Githua was forcibly ejected from office on Tuesday by the grandchildren of Tusky founder the late
Joram Kamau,
a move that drew widespread condemnation from the public.
"We wish to clear the air as to why drastic measures had to be taken," Mugweru said in a press statement on Wednesday night.
"After his appointment as CEO he used this position to intimidate, humiliate and mistreat our esteemed employees while arbitrarily sacking some of our most loyal members of staff...In his tenure Mr Dan Githua has also used his position to recruit his family members into senior positions at Tuskys."
This latest twist to the wrangles that have gripped the country's second largest retailer point to a deeply divided family, that owns the 25-year-old business.
Mugweru was opposed to Githua's appointment from the word go, as he was the first to reject the move when the CEO took office in May 2015.
He objected to his appointment arguing the shareholders were not consulted.
Githua is the first non-family CEO to be appointed at Tuskys. His appointment was in preparation for the company's plans to list at the Nairobi Securities Exchange in five years time.
He neither answered calls not replied messages for comment on the matter.