Mr cruel is the nickname of an unidentified man of an Australian serial killer and child-rapist who reportedly attacked three young girls, in the nothern and southern parts of Melbourine in the '90s and 80s. He is the prime suspect of the 1991 abduction of a young girl named Karmein chan who he had also murdered.
On the 22nd of August 1987, he broke into a home at around 4 am armed with a knife and a handgun, he tied the parents hands and feet onto the bed then locking them into the wardrobe. He raped the 11 year old daughter and had previously tied down their young son. He cut the phone lines and had disappeared.
Next on the 27th of December, a year later in 1988 he broke into a family home at 5:20 am by the back door. This time only armed with his hand gun, he proceeded to bound and gag the parents, demanding money from them. He grabbed their 10 year old daughter and put tape over her eyeballs, putting a ball gag in her mouth, abducting her. She was released only 18 hours later, at Bayswater High School.
Onto the third victim that was fully confirmed, on the 3rd of July in 1990, he broke into a family home at 11:30pm, armed with a knife and a gun again. He tied up and gagged their 13 year old daughter, placed tape over her eyes, disabled the phones and then went to search for money. He then drove her to another home, molested her for fifty hours, he then released her at a power station.
Moving onto the crime of Karmein chan, who they still haven't confirmed was by him. On the 13th of April in 1991, a man described wearing the same clothes since the three victims before, a balaclava, specifically, abducted the 13 year old Karmein. Though, this was the only girl who was killed, she was found decomposed with three bullet wounds in her head. They believe she was killed because she could of had seen his face. Detectives could never determine if it was really him because there was a lack of evidence.
They described him extremely intelligent, very planned, even conducting surveillance on the victims and their families. He ensured that he left no forensic traces and protected his identity at all costs. He was not panicked, even eating a meal in one of the victims homes he broke into. He had never been identified, there was a reward of 200 thousand for his identity and two other victims, though in 2016, 20 years after Karmein's death, they had increased the reward of his arrest and conviction from 100 thousand to 1 million.