Alexey Navalni, key Russian opposition leader, died in the Arctic prison under mysterious circumstances.
Navalni was arrested and sentenced to over 30 years in prison by Putin.
Prison conditions contributed to the deterioration of Navalni's health.
He denounced electoral fraud and government corruption.
He was poisoned in 2020 by Russian security service and then transferred to Germany to be treated.
Navalni earned the label of Putin's number one enemy.
There is a strong reaction from the Western community holding Putin responsible for Navalni's death.
Conclusion: The death of Navalni highlights the harsh repression of Putin's regime on opponents, where corruption and abuse of power are exposed. Courageous voices like Navalni's will be difficult to replace under Putin's tight control.