Mr Danquah-Adu was murdered in his home in the wee hours of Tuesday by assailants who used a ladder to access his bedroom before stabbing him several times, according to the police.
On Thursday, the police arrested a young man whom they suspect was responsible for the MP’s killing, and launched a search for who they said were his accomplices.
By Friday, social media had been inundated with news that the mastermind of the killing was Stan Dogbe and that he had been invited by the security agencies to answer questions relating to the murder.
Some of the claims sighted by Graphic Online said that information had been retrieved from the late MP’s phone, which indicated that he had been threatened by Mr Dogbe a few days before his death.
The New Patriotic Party Member of Parliament for Assin North, Kennedy Agyapong, is said to have made reference to this on Accra-based Oman FM on Thursday, but had not mentioned Mr Dogbe by name.
Mr Agyapong reportedly added that the President, John Mahama, would be impeached if he was found to have had a hand in the MP’s killing.
But reacting to the claims in a Facebook post on Friday, Mr Dogbe denied having been involved in “any murder or criminal act”.
He attributed the rumours to elements within the NPP, who he said were pursuing a strategy of painting President Mahama black because the NPP did not have a campaign message.
“It's their campaign strategy, probably outlined for them by their hardworking strategists- continue to publish falsehood about the President and eventual winner of the 2016 elections and his team,” he said, adding: “I have not been invited by any security agency, I have not been involved in any murder or criminal act.”
Mr Dogbe also called on the flagbearer of the NPP, Nana Akufo-Addo to call his “army” to order.
“…let your army help design a message for you for the election instead of this [sic] disgraceful things they are engineered to engage in,” he wrote.