Tyrone Smith III was 6 when he and three others were shot to death in their Rockford, Illinois home on December 20, 2014. The victims were Tyrone; his 4-year-old brother Tobias K. Smith; their mother, 24-year-old Martia Flint; and 24-year-old Demontae Rhodes, who was living with the family.

Investigators identified Calvin L. Carter III as the perpetrator. Prosecutors said Carter had a tumultuous relationship with Flint and introduced text messages from Flint indicating she feared him and had recently ended the relationship. The prosecution also presented phone records and other evidence they said showed Carter entered the residence that night and killed all four victims. A jury found Carter guilty on counts including first-degree murder and home invasion; he received four life terms plus 280 years in prison.

The killings devastated the Rockford community and prompted renewed attention to domestic violence and its potential to escalate to lethal violence. If anyone knew the victims or has additional information about the case, please share what can help the families and investigators.