"Omar's statement is wrong as there was torture marks on the body," said Talib Hussain and enquired a CBI probe in the death of his father.
"My father had close relation with Abdullah family. He used to visit Omar on regular bases," said Hussain.
Hussain further said that he was allegedly told by the Inspector Genereal of Police that his father was beaten at the Chief Minister's residence.
"Every thing took place at the Chief Minister's residence, IG told me this," he claimed.
"I demand CBI probe in his death, we don't trust state government probe or judicial probe. The Chief Minister should quit for independent probe," said Yousuf's son.
Earlier, Abdul Salam Reshi who claims to be an eye witness and a party member said that Yousuf was beaten at the Chief Minister's office adding that Yousuf had money deals with Omar Abdullah.
"He was vomiting blood when he came out of the Chief Minister's residence and we trust the statement given by eyewitness Abdul Salam Reshi. We have photos to prove this...he was assaulted," said Hussain.
"My father had no heart ailments," he said.
Yousuf died in the police custody after he was handed over to the police by chief minister, Omar Abdullah. Yousuf had taken money from two people promising them ministership and an MLC seat.