Final answer:
Eyewitness testimony, surveillance footage, DNA analysis, and forensic analysis of bomb fragments were the types of evidence that proved the culprit in the bomb case study.
Step-by-step explanation:
In the bomb case study, the type of evidence that proved the culprit included eyewitness testimony, surveillance footage, DNA analysis, and forensic analysis of the bomb fragments. Eyewitness testimony from individuals who saw the suspect planting the bombs or acting suspiciously provided crucial evidence. Surveillance footage captured the suspect at the scene and helped identify them. DNA analysis found the suspect's DNA on the bomb fragments, linking them to the crime. Forensic analysis determined the components of the bomb and how it was constructed, further supporting the case against the culprit.