Mirjana Puhar was a contestant on Cycle 21 of America's Next Top Model, where she received 8th place. On February 24th, 2015, she was murdered in a triple homicide at the age of 19.
It isn't conclusive that the name derives from Miriam. Some derive it from the popular root of "mir". Also there is a church term "mirjanin/mirjanka" which means lit. "a person of the world", ie non-clergy (as opposed to "duhovnik", those of the spirit, the clergy) and it could derive from there. [noted -ed]
https://sq.wikipedia.org/w/index.php?search=Mirjana&title=Speciale:K%C3%ABrko&profile=advanced&fulltext=1&ns0=1