The Russian Investigative Committee said it believed someone planned and ordered the car explosion that killed Darya Dugina, based on evidence already collected from the blast.
Dugina's father is a Russian author and ideologue, credited with being the architect or "spiritual guide" to Russia's invasion of Ukraine.
He is purported to have significant influence over Russian President Vladimir Putin and was described as "Putin's Brain" by Foreign Affairs magazine.
The United Kingdom sanctioned Dugina in July for being "a frequent and high-profile contributor of disinformation in relation to Ukraine and the Russian invasion of Ukraine on various online platform," it wrote.
Videos of the explosion showed a vehicle on fire at the side of the road and smashed car parts strewn across the surrounding area.
A Russian foreign ministry official implied that Ukrainian state structures were responsible for the explosion, a claim that Ukrainian authorities have denied.
Dugina, the daughter, was born in 1992 and studied Philosophy at Moscow State University, according to TASS. »