A former marketing executive was jailed for two weeks on Monday for failing to report the death of a management trainee whose body was later found stuffed in a trolley bag floating off Sentosa.

Pee Weai Hong, 33, is the first person to be convicted under the Coroners Act for not reporting the death of Mr Dylan Wong Teck Siong, 28, being a reportable death, after he came to know of it in 2011.

It was almost two weeks later, on April 16, that the body was found. By then it was decomposed and the pathologist could not ascertain the cause of death.

Pee's lover, Teo Boon Leng, 44, was initially implicated with Mr Wong's death but he was given a discharge. He is facing charges related to the death and his case is pending.

Mr Wong came into the picture when Teo invited him over to his rented apartment at the Caribbean at Keppel Bay Drive while chatting online with him on Feb 10 that year. Mr Wong met Teo and Pee for the first time and the trio then engaged in sexual activities.

Subsequently, Mr Wong stayed at the apartment several times a week. After an incident between Teo and Mr Wong on April 1, Pee decided not to return to the apartment after work, checking into a hotel instead.

He later learnt about Mr Wong's death from Teo but did not tell the police. Teo had also said he did not wish to report the matter.

District Judge Jasvender Kaur found aggravating factors in the case. She said even when the deceased's family was in the apartment to find out where Mr Wong was, Pee participated in hiding the death by showing Mr Wong's brother a false SMS which had been sent by Teo to him and the deceased to prove that Mr Wong was alive.

Pee could have been fined up to $1,500 and/or jailed for up to one month.