Recognize what makes this moment difficult
Acknowledge the event directly without turning it into a lesson, comparison, prediction, or silver lining. For a message about how to reject a job candidate respectfully, use this factual base: state the role, policy, decision, dates, and process that apply without disclosing another employee's information.
Offer support that can be accepted
Offer one specific form of practical or emotional support and make clear that no immediate reply is needed. Explain the available next step, support, review route, or deadline and name the correct contact. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Follow their pace rather than yours
Do not imply a guaranteed outcome, retaliate, or use informal pressure where a formal process is required. Use HR, a representative, legal advice, or emergency support for discrimination, harassment, threats, or immediate danger. The recipient decides whether they want conversation, ordinary company, practical help, professional support, or quiet.