How to start researching a cold case
A practical way to begin: one question, a source log, and a clear separation between facts and theories.
Start smaller than the mystery
“What happened?” is a powerful reason to care, but a difficult first research task. Choose a question you can actually check: when was a statement recorded, which document supports a date, or whether two articles rely on the same interview.
Write that question at the top of your notes. Give the session a stopping point. A useful result can be a verified date, an unresolved ambiguity, or a source you now know you need. You do not have to solve a case to contribute something valuable.
Build a source log before a theory
For each document, save its title, author or issuing body, date, original URL, access date, and the page or paragraph you used. Keep a short quotation beside your summary. A link alone becomes frustrating when a long document changes or disappears.
CourtListener is one starting point for legal research, with court opinions and the RECAP archive. Choose the relevant collection and narrow your query. A court opinion, a docket entry, and a trial transcript are different records; do not assume finding one means you have the others.
Source: CourtListener: search help and collection guidance ↗Give uncertainty its own column
Use four labels: documented statement, interpretation, open question, and unsupported claim. “The witness said 9:15” records a statement; it does not establish that the event happened at precisely 9:15. Preserve words such as “about,” “later,” and “I think.”
If two sources disagree, keep both visible. Look for differences in time zones, terminology, publication dates, or what event each person actually describes. A discrepancy is a reason to investigate context, not permission to accuse someone.
Leave work another person can check
Finish with a short handoff: the question, the records examined, the relevant passages, what you found, what remains uncertain, and the smallest next task. Avoid private contact information and identifying details unrelated to the question.
Keep research within material you are entitled to access. Do not contact or mobilize others against people named in a case. Route credible new information through the appropriate official channel. Just is being built to make this careful, source-linked workflow easier to share.