Skull found in search for Bolshoi ballerina who vanished after she was 'blackmailed over erotic phot

COPS have found a skull in a long-running hunt for the body of a professional ballerina blackmailed over erotic photos.  Stunning Olga Demina, 25, vanished without a trace five years ago - but cops were never able to prove who killed her.  Her ex-manager Malkhaz Dzhavoev was arrested in Moscow in 2017 but later released without charge.  But cops found a skull near his mobile phone's final position on the night she went missing.  Before her disappearance, Bolshoi ballerina Demina was the victim of a sting operation involving 'sexually compromising' pictures of her.  She paid money totalling almost £10,000 several times to the 'blackmailer', but the photos ended up online anyway. CASE WENT COLD  In the week she vanished, Dzhavoev drove her to and from another city in August 2014 where she reportedly performed at a private party for a wealthy businessman.  Cops claim he took her back to a Moscow flat where she was murdered.  Shortly before she disappeared, Olga's mum received a mysterious text message from her daughter's phone.  It read: "Mum, this is Olga. I stole a large amount of money. I cannot go to Moscow. I'll now go to Europe for 10 days.  "Do not answer calls if they call you. Do not look for me. Don't go anywhere.'  But cops believe the message was sent by Dzhavoev after he killed her.  DNA results from the bones are expected to be back within one month.