Paulius Radvilavičius, a spokesman of Vilnius County Chief Police Commissariat, told BNS that a woman's call was received at 9:29 AM and she said she had found her dead husband, 53.
A pre-trial murder investigation has been launched, with no arrests so far.
The police refuse to comment on the incident.
Voinicki worked at Vilnius Pranciškus Skorina Secondary School and was a member of the Council of National Communities.