Prosecutors said Marina Pisareva, the deputy head of Bertelsmann's Russian branch, was apparently killed with a collector's dagger that belonged to her.
Media giant Bertelsmann operates in 63 countries. In Russia, the company is a stakeholder in television and production company REN TV.
Prosecutors have not ruled out the possibility that Pisareva's murder is connected to her professional work.
(AP, AFP, ITAR-TASS)
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