To identify a suspect, genetic genealogists construct 'genetic networks' by grouping matches who share DNA with each other, not just the suspect. By building family trees for these clusters, they can identify common ancestors and reconstruct branches of the suspect's family tree, eventually pinpointing the individual through reverse genealogy and identifying shared ancestry.
Impact: High. This systematic approach transforms raw DNA matches into actionable genealogical data, enabling the reconstruction of an unknown individual's lineage and, ultimately, their identity.
In the source video, this keypoint occurs from 00:33:51 to 00:35:24.
Sources in support: Megyn Kelly (Host)

