Retired, avid landscape designer and topiary master.
In 2020, he took part in protest marches, including pensioners' marches.
In August 2022, he was detained by GUBOP officers on his way to work. The case initially resulted in a 10-day administrative arrest for an "extremist repost." After 10 days in Okrestina, a criminal case was opened against Kostus under Article 342 of the Criminal Code of the Republic of Belarus and he was transferred to a pretrial detention center.
After being released on home chemistry, Konstantin left the Republic of Belarus after some time.
In May 2025, a criminal case was opened in absentia against Konstantin “to replace the punishment with a more severe one.”
