The gas Citizens Energy serves customers, typically methane, is naturally odorless so the company adds mercaptan, which smells like sulfur or rotten eggs, to serve as a sentinel in case there's a gas leak.
—
Karl Schneider,
IndyStar,
10 Dec. 2025
The populations in Akwa (also in southeastern Igboland) formed vigilante groups armed with rifles, built towers where sentinels were posted, and their shots would alert villagers if raiders came within sight.
Stingley died the same year as Trayvon Martin, a Black Florida teen shot to death by a neighborhood volunteer watchman, who was acquitted in 2013.
—
Megan O’Matz,
ProPublica,
16 Jan. 2026
The Peacock series follows Alexander Hale (Simu Liu), an intelligence analyst with The Orphanage, an organization that serves as a watchman for the United States intelligence communities.
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