Nuno Loureiro, a Portugese plasma physicist, was killed in his home in Brookline, Massachusetts on Dec 15th, 2025.

Will his killer be apprehended by authorities before February 2026?

Resolves on credible media reports published before February 2026, US eastern time, that a suspect, whom authorities intend to charge with Loureiro's murder (or manslaughter or any comparable charge), has been apprehended.

Significant doubt expressed by law enforcement, as reported in credible media sources, as to whether an apprehended suspect is the culprit, will cause this market to remain open until the situation is clearer. Resolution still depends on the date a suspect was apprehended, however, and if such doubts are cleared up after February 2026, the market will still resolve YES if the culprit was caught before then.

For speedy resolution, the market will otherwise resolve NO on Feb 1st 2026 if there are no reports of any suspects being taken into custody, even if it later becomes known that this did occur prior to February.

Update 2025-12-18: if a suspect is found dead and it is clear that they would have been charged if alive, the market will resolve YES.