Abuja-Kaduna train attack: Victims’ complaints against Tukur Mamu supported DSS’ probe – WitnessAn investigator with the Department of State Services (DSS) has told a Federal High Court in Abuja that the complaints lodged by rescued victims of the 2022 Abuja-Kaduna bound train attack against alleged terrorist negotiator, Tukur Mamu, supported investigations by the agency. In response, Usman argued that none of the names he called was a witness before the court. When he resumed his testimony, the witness said investigators interviewed six victims of the attack in the course of the investigation. On whether the six victims were interviewed in the presence of the defendant, the witness said no. At the conclusion of the cross-examination, Kaswe told the court that the prosecution would be closing its case with the sixth prosecution witness.