Root's girlfriend Cristina Scabbia, vocalist with Lacuna Coil, says in an Instagram post: "If you're a real fan, I can understand you want to have something that belongs to your idol. But that's the wrong way to do it and it is depriving another person of something that might mean memories and something more than an 'item.'

"If whoever got this guitar is reading this, please take it back or send me a private message. We can all do something stupid and taking it back is what can bring a lot of honor back to you. From zero to hero. Think about it and be a man."