# Investigation Discovery Buys True-Crime Doc

> Investigation Discovery acquires true-crime documentary My Brother’s Killer for December 3 debut.
- Title: Investigation Discovery Buys True-Crime Doc · Deadline
- Summary: Investigation Discovery acquires true-crime documentary My Brother’s Killer for December 3 debut. Investigation Discovery will air the true-crime documentary…
- Keywords: investigation discovery, my brothers killer, true crime, circus of books, rachel mason, penelope spheeris, decline of western civilization, sxsw, outshine film festival, afi fest, december 3, entertainment
- Source: Deadline — https://deadline.com/2026/10/investigation-discovery-true-crime-doc-my-brothers-killer-1237168027
- Author: Peter White
- Published: 2026-10-22T13:00:00+00:00
- Read time: 1 min
- Topics: investigation discovery, my brothers killer, true crime, circus of books, rachel mason, penelope spheeris, decline of western civilization, sxsw, outshine film festival, afi fest, december 3, entertainment
## Investigation Discovery Buys True-Crime Doc
Investigation Discovery acquires true-crime documentary My Brother’s Killer directed by Rachel Mason of Circus of Books.
## Documentary Debut Date
The film will debut on December 3 after premiering at SXSW and winning Best Documentary Jury Award at Outshine LGBTQ+ Film Festival.
## Upcoming Festival Run
The documentary is set to launch at AFI Fest on October 24 following its festival run.
## Key takeaway

Investigation Discovery will air the true-crime documentary My Brother’s Killer on December 3 after it won Best Documentary Jury Award at Outshine LGBTQ+ Film Festival.