Witnesses in Ryazan, including Aleksei Kartofelnikov, reportedly refused to cooperate with investigators by 2003.

Confirms the participation of FSB General Alexander Zdanovich in the public defense of the Ryazan 'exercise' narrative.

Investigation lead to locate the unedited master tapes of the NTV 'Independent Investigation' broadcast on the Ryazan incident.

Investigate the specific date and transcript content of the 'Tuesday 5' Levinson interview.

Source confirms the existence of an interview recording with Lev Semyonovich Levinson.

Sergeyev questioning Dismissed

NTV Ryazan broadcast Dismissed

2003 resident visit Dismissed

2003 contact attempt Dismissed

Gusinsky Dismissed

General Zdanovich Reviewed

General Sergeyev Dismissed

Kartofelnikov Dismissed

Kartofelnikov witness review

Zdanovich status check

Nikolaev investigation

Zdanovich's resignation

Identification of witness Kartofelnikov

Internal censorship at NTV

Footage length discrepancy

Unedited NTV footage exists