Yorkshire Ripper Peter Sutcliffe was destined to be a serial killer the moment his father uncovered his mother's infidelity, a new documentary has claimed.

John Sutcliffe, confronted his wife Kathleen about an affair in a hotel room in 1970. Sutcliffe brought his son with him to the hotel, so the youngster witnessed the betrayal.

A new five-part documentary claims this incident triggered something within the lorry driver prompting him to later murder 13 women.

John Sutcliffe, father of Yorkshire Ripper Peter, confronted the killer's mother Kathleen with allegations she was having an affair in front of the lorry driver in Bingley, West Yorkshire in 1970

Kathleen Sutcliffe was confronted by her husband in front of her children about the alleged affair. The documentary also claims Sutcliffe's father also beat his wife while she was pregnant

Yorkshire Ripper Peter Sutcliffe, pictured aged seven, left, and as an adult, right, murdered 13 women before his eventual capture

According to the Sunday Express, Sutcliffe's father removed a neglige from an overnight back claiming his wife was going to use it with her secret lover.

The revelation will appear in a new documentary 'Murderers and Their Mothers' which will be broadcast on CBS Reality.

Before discovering the infidelity, Sutcliffe was devoted to his mother.

The documentary also claims Sutcliffe's father beat his wife while she was pregnant with the serial killer.

However, the documentary claims the incident in a hotel in Bingley, West Yorkshire triggered his later violence against women.

The killer was aged 23 when he and two of his siblings witnessed the confrontation between their parents .

Dr Keri Nixon said: 'The incident in the hotel is absolutely the most significant trigger of what then goes on to happen.'

She said there were several other incidents around the same time which distorted his views of women.

However, she claimed Sutcliffe was crushed by his mother's affair, which led to his murderous rampage.

She added: 'And the anger that has been storing up with all these other things is becoming closer to the surface now because he’s feeling anger at the one person he thought would never let him down.'