Omar Abdullah was entangled in the controversial death of Yousuf as it was reported that he died in police custody.
While addressing a television channel, Omar claimed that "Yousuf was a crook whom I dealt with in a transparent manner. Every party has men like this who will sell political proximity for favours."
Yousuf's family had accused that he was tortured by the police. The autopsy report, however, said that Yousuf died due to a heart attack.
Omar said that his father Farooq Abdullah was also unaware of the fact that Yousuf was offering government posts to people in return of money.
Abdul Salam Reshi had earlier complained to Omar that Yousuf had taken bribe from him for providing government posts.
"We need to segregate the two cases (death and the issue of bribery). As far as death of the NC worker is concerned, the Chief Minister has ordered a judicial enquiry. Let's allow the probe to be completed," said Congress spokesman Manish Tewari commenting on the issue.