screengrab suspect arrest
Video purports to show arrest of suspect in death of Russian commander
00:37 - Source: CNN
CNN  — 

A Russian submarine commander shot to death while jogging on Monday may have been targeted by an assailant tracking him on a popular running app, according to Russian media.

Stanislav Rzhitsky was killed earlier this week in the southern Russian city of Krasnodar by an “unknown person,” state news agency TASS reported, adding that “the motive for the crime is being investigated.”

Russia’s Investigative Committee said on Telegram a man has been detained in connection with Rzhitsky’s killing, adding the suspect had a pistol with a silencer in his possession “by means of which, presumably, the murder was committed.”

Russian media earlier reported that Rzhitsky’s killer may have used Strava, a widely available app used by runners and cyclists, to follow his movements.

Rzhitsky’s jogging and cycling routes appear on an account in his name on the Strava app. One of his regular jogging circuits that he took while working in Krasnodar include the park where he was killed early Monday.

One Russian media outlet, Tsargrad, said the assailant “planned the murder so carefully that the moment of the attack did not appear on any CCTV cameras.”