Keyamo made this remark in reaction to the purported clampdown on the opposition party by the President Muhammadu Buhari-led federal government.
Keyamo told Punch that the party has lost the sympathy of Nigerians because of its sins against Nigerians and blood on its hands.
He said: “They did it to people and so they assume others will also do it. That is why you can see that they have written letters to the United Nations, crying to high heaven that some people want to rig elections.
“That was exactly what they did, so they are already assuming — and it is just a wrong assumption — that others will do what they did too.
“You can see that is why they are not getting the sympathy of Nigerians because the people know that they (PDP members) are crying foul.
“So, on the issue of clampdown on the opposition, that is a military term. It does not apply and it will never apply in a democratic setting such as this.
“They are the ones who called for the looters’ list and the federal government obliged them. Can you see that these people are confused?
“The members of the PDP, with all due respect, are like somebody who had ‘killed’ so many people. I am not saying that literally; I am saying this as an analogy.
“They are like someone who killed so many people and blood is on their hands, then the person begins to behave like a mental patient because they have committed so many atrocities.
“When you have committed so many atrocities, you don’t think straight again because the blood of people is now on your hands.
“They have committed so much sin against Nigerians that, right now, they are not thinking straight again. That is what is taunting them right now.
“That is why you see them issuing all kinds of inconsistent statements. They are no longer thinking straight.”
Commenting on the concerns over the health of the president as he seeks to contest the 2019 presidential election, Keyamo added: “Nobody should be worried and concerned about his health.
“The world has watched with excitement and happiness how much the President has bounced back to health since he came back from his medical vacation.
“And I am sure you have seen that yourself. The President is looking fresher, younger, cleaner, and more handsome on the lighter side.
“We have had presidents that were never sick before, but they just slumped and died, like the case of (Gen. Sani) Abacha. Was Abacha ever sick?
“These are matters in the hands of God and anybody who wants to play God will incur the wrath of God.”