JAN 25

About 2.30pm: Benjamin Lim walks home from North View Secondary School using a different route. He sees a girl in her school uniform, alone. He decides to follow her, according to his statement to police.

About 2.50pm: They enter the lift. In closed-circuit television footage from the lift, he is seen dropping his mobile phone. As he picks it up, his right hand apparently touches the back of her left thigh or lower buttocks area.

Shortly after lift encounter: The 11-year-old girl goes home and calls her father, who rushes home and takes her to Yishun North Neighbourhood Police Centre to make a police report.

JAN 26

9.45-9.50am: Five plainclothes officers visit North View Secondary in two unmarked cars. They meet principal Chen Fook Pang. Staff suspect Benjamin is the person in the police camera footage because of his red spectacles.

About 10am: Discipline mistress Steff Chan Su Qin gets Benjamin from the canteen and the principal speaks to him in his office. Inspector Poh Wee Teck interviews him in the presence of school staff.

About 10.30am: Police decide to take Benjamin to Ang Mo Kio Police Division. He calls his mother on his phone. Senior Investigation Officer Mohammad Fareed interviews him in an open-plan office. The boy allegedly admits that he followed an 11-year-old girl into a lift the day before, dropped his phone on purpose and touched her left back thigh while standing up. Benjamin is arrested and put in a temporary holding area, away from adults, as he waits for bail to be processed.

About 2.50pm: Benjamin is released into his mother's custody. On the way home, she asks if he had committed the act. He says no, and that he did not know what happened.

About 3.30pm: The family reaches home. After taking a shower and having lunch, he plays games on his phone at the dining table.

4.13pm: School counsellor Karry Lung calls. Benjamin's mother tells her son that the school said he would not be allowed to attend a Secondary 3 school camp.

4.18pm: Mrs Lim finds the boy's room locked and opens it with a spare key. He is not in the room. A window is open and his phone is on his bed. She rushes downstairs with her daughter.

4.36pm: Benjamin is pronounced dead by paramedics.

Jalelah Abu Baker