The book, The Reluctant Monarch, was largely based on Markovic's claims that King Carl Gustav had visited his strip-club. Pictures taken by Markovic, supposedly showing the King in the club, were published in national newspapers, but the pictures later were proved to be fake. A friend of the King bought several secret pictures in 2011 for SEK 625,000.
Journalist Beata Hansson, who helped write Markovic's memoirs, which were published in 2012, said that she last met him two years ago, and that they had spoken about the possibility he would one day be murdered. She says to Swedish Radio News he was often armed, and usually wore a bullet proof vest. He was killed by several shots to the head.
The former boxer was born in the former Yugoslavia in 1961 and came to Sweden with his father in the seventies. He was convicted of several crimes in Sweden, including assault, drug offences and making threats. He was also involved in a conflict over ownership of a strip club. He was accused of being behind an incident in which shots were fired at the club, but was cleared in court.