Just eight months after spending about 20 years in jail for raping three women, Razali Osman was back to his old ways.
This time, on Oct 20 last year, his target was a flatmate in Clementi.
When he found her room door locked, he climbed out of the living room window, and onto the fifth-storey parapet.
Razali, 43, was no stranger to housebreaking - he was sent for rehabilitative training for seven counts of housebreaking in 1998.
He then entered her room through an unlocked window, pounced on her, slapped her and sexually assaulted her.
On Wednesday, Razali pleaded guilty to three charges of aggravated sexual penetration of the victim with his fingers, attempted aggravated rape and housebreaking by night, with two other charges taken into consideration.
The court also heard that the victim, a 31-year-old Filipino national who was working as an administrator then, had rented a room from Razali's relative.
Shortly after getting to know her, Razali developed feelings for her - even sending her flowers on two occasions. But she rejected his advances and told him she had a fiancé in the Philippines.
He then felt she was no longer as friendly and became cold to him.