Few details of the case have been released .
Investigators said they are trying to find out if Benzema played a role in an extortion attempt targeting Valbuena , and if he actually tried to blackmail the Lyons midfielder .
Few details of the case have been released , but investigators said they are trying to find out if Benzema played a role in an extortion attempt targeting Valbuena , and if he actually tried to blackmail the Lyons midfielder .