Here is one possible action: From Wikipedia: "
Arlis Kay Perry (February 22, 1955 – October 12, 1974)
[2] was a 19-year-old American newlywed who was murdered inside
Stanford Memorial Church, within the grounds of
Stanford University in
California, on October 12, 1974. The murder went unsolved for more than forty years before police named Stephen Blake Crawford as the perpetrator following
DNA profiling in 2018. Crawford, a security guard at Stanford who reportedly discovered the body, died by
suicide before he could be arrested."
As I recall the story, police arrived to question Crawford. When they came to his door, he knew immediately, and he shot and killed himself before the police could take him into custody. I'd call that "justice," personally--years of fear that the police were on his trail, then the agonizing decision to kill himself. MHO.