On Friday 25 July 1941 or somewhere around this date, Einsatzcommando 3 murdered 90 Jewish men and 13 Jewish women. A total of 103 persons died on this location in Marijampolė.
Source of this record: The so-called Jäger Report (full title: Complete tabulation of executions carried out in the Einsatzkommando 3 zone up to December 1, 1941) was written on 1 December 1941 by Karl Jäger, commander of Einsatzkommando 3 (EK 3), a killing unit of Einsatzgruppe A which was attached to Army Group North during the Operation Barbarossa. It is the most detailed and precise surviving chronicle of the activities of one individual Einsatzkommando, and a key record documenting the Holocaust in Lithuania as well as in Latvia and Belarus.
The photo is most probably not in this area but an example of German execution units.