On the night of May 27, 2024, 21-year-old Zach Frankus was one of three men shot to death inside a Main Street home in Centerville, South Dakota. His 26-year-old brother Paul Frankus and 35-year-old Timothy Richmond were also killed. The sequence began with a 9:44 p.m. 911 call made by Zach, who reported his brother had been shot by a neighbor; the call ended abruptly when Zach was shot during the call.

Police encountered a 64-year-old man leaving the residence, later identified as Jay Edward Ostrem, who smelled of alcohol and was arrested without incident. Officers found a handgun and an AR-style rifle in his possession. Ostrem has been charged with three counts of first-degree murder and other felonies and is being prosecuted by the South Dakota Attorney General’s Office; he was held on a $1 million cash-only bond and has entered pleas of not guilty, not guilty by reason of insanity, and not guilty but mentally ill.

The case reportedly stemmed from Ostrem’s wife telling him that Paul Frankus had sexually assaulted her a few days earlier, an allegation that investigators say provoked the fatal confrontation. Does anyone have information about the victims, the Main Street residence, or what happened that night?