Crime Solvers Central
CSC
218 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case? Let us know!
On a tragic Thursday morning, November 14, 1991, the community of Royal Oak, Michigan, was shaken by a horrifying act of violence that claimed the life of Rosemarie Rose Proos, a 33-year-old female postal supervisor. The day began like any other at the United States Post Office on West 2nd Street, but it would soon descend into chaos and bloodshed.

A former postal worker, 31-year-old Thomas McIlvane, who had been terminated from his position for insubordination, returned to his old workpl ...Read More
Victim Details

Rosemarie Rose Proos

Female

Royal-oak

MI

1991-11-14

33

Rosemarie

Rose Proos

12/23/2025