DUNCAN Bannatyne, the Dragons Den star, has offered a 50,000 reward to Twitter users for the capture of a blackmailer who allegedly threatened to harm his daughter. The Scottish entrepreneur reacted furiously to demands from a Twitter user demanding 35,000 to prevent his daughter Hollie, 25, being hurt. An online ransom note addressed to the 62-year-old said: Duncan - Dear Dragon. My name is Yuri Vasilyev and Im looking for a 35,000 investment to stop us hurting your Hollie Bannatyne. TG