As the Herald Sun reports, Marcus was a father of two children.
He was stabbed in the back near Tottenham train station, and a 35-year-old has been charged with murder.
Just four days earlier, Marcus had attended the funeral of his cousin Natasha, Nine News reports.
Ms Rowley was found dead in the shower in a hotel room rented by 11 men at The Oaks on Market on July 16.
The Perth woman, who was known to her friends as “Tash”, had become a soldier in the Australian Army just four months before her tragic death.
“I’ll never forget your sweet smile, my beautiful sister. I love you, Natasha,” her older sister Alannah posted on Instagram, news.com.au reports.