A BBC documentary series is delving into the murder of a Bolton grandfather whose body was dumped in a reservoir.

The second episode of The Detectives: Murder on the Streets aired last night and cameras followed DCI Sarah Jones as she investigated the disappearance and then murder of Darren McMinn (pictured below).

The Bolton News:

He was killed by Candido Pereira (pictured below), who then dumped his body in the reservoir.

The Bolton News:

Mr McMinn went missing on April 11 last year and Pereira was found guilty after a trial and sentenced to life in prison.

As well as looking at the investigation into the death of a homeless man in Manchester, last night's episode saw DCI Jones as she began to look into Mr Mc McMinn's disappearance.

He was reported missing in the days following and had not used his phone of accessed his funds at the post office.

As he was a drug user, officers started to investigate whether he was looking for illicit substances.

Police are then seen carrying out a search of Mr McMinn's house, carrying out raids on the properties where known associates live and also speaking to his family.

Phone evidence eventually leads them to Pereira, who is first interview as a witness and then as a suspect but denies killing him.

He states that he has been driving for drug gangs and if he starts naming people he could be murdered.

Man convicted of murdering Bolton grandfather Darren McMinn 

The episode finished without Mr McMinn's body being found.

The programme is available on catch up and the series will continue to follow the investigation next Wednesday on BBC2 at 9pm.