A repeat domestic abuser who met a new partner on Snapchat threatened to sexually assault the woman's teenage daughter and vowed to put her dying father "10ft under". Sean Marr has now been jailed twice within two years for offences against women he encountered through the social media app.
His most recent victim Googled his name and uncovered his history of violence towards previous partners, despite the seemingly "nice guy" having insisted he was "against men being abusive towards women". He has now attempted to attribute a brain injury, sustained during a prison attack, to his latest offences.
Court hears of threats and abuse
Liverpool Crown Court heard yesterday, October 19, that Marr, previously of Blackburne Place in Liverpool city centre's Georgian Quarter, was already subject to a 15-year stalking protection order, barring him from directing threats and abuse towards any partner, ex or family member, imposed in September 2023.
In December 2025, the 40-year-old began a relationship with a Tamworth woman, herself a former victim of domestic abuse who the ECHO has chosen not to name, after they connected via Snapchat.
However, Kevin Liston, prosecuting, outlined how the relationship lasted barely a month after Marr bombarded her with messages and calls throughout January this year, issuing threats against her daughter and father.
He told her he wanted to have sex with the girl, who was under 16, and warned he would put her terminally-ill father "10ft under".
Google search uncovered 'nice guy's' past
Marr has clocked up 28 previous convictions spanning 78 offences. The ECHO previously reported that one court appearance last February involved another relationship with a woman he'd likewise befriended via Snapchat.
While Marr seemed like a "nice guy" and professed to be "against men being abusive towards women", she subsequently discovered his catalogue of previous convictions for abusing ex-partners after uncovering and Googling his actual name. When challenged about this past, he retaliated by launching a harassment campaign against the mum, threatening to "come for her parents".
Peter White, defending, told the court yesterday afternoon: "Mr Marr has there wherewithal to realise that his behaviour was unacceptable and wholly unconscionable. He can only apologise. He says that he acts on impulsivity."
"Mr Marr tells me that, in 2014, he was the victim of a very serious assault which did result in a brain injury. He was assaulted in prison. He accepts that it does not offer any explanation or justification and his conduct has been very poor throughout, but that is in the background."
"He was in these courts as a very young person as a witness to a murder and, quite recently, witnessed his father's suicide. Mr Marr tells me that he hopes to, on this occasion, use his time in custody as best as he can. He tells me that he is fully willing to engage in any sort of programme."
16-month sentence and restraining order
Marr admitted breaching a stalking protection order and sending offensive, indecent, obscene or menacing messages. Appearing via video link to HMP Liverpool wearing a red Montirex t-shirt, he received a 16-month prison sentence alongside a 15-year restraining order.
During sentencing, Judge Gary Woodhall stated: "You were in a relationship together between December 2025 until January 2026. When she ended the relationship, you repeatedly messaged and called her. You made disgusting threats to her daughter and her father, who was then terminally ill."
"They included you threatening to assault and have sex with her underage daughter and kill her father. You threatened to post pictures of her on the dark web. You suggested that it was due to your brain injury."
"I am told about your brain injury from 2014 and other traumas that you have had to endure. You have your own children, but you are not allowed any contact with them."
"Your victim has previously been a victim of domestic abuse. Making the sort of threats that you did about her underage daughter must have caused her distress."
"This is a case where the seriousness of the offending means that appropriate punishment can only be achieved by immediate imprisonment. I am also satisfied that there is no realistic prospect of rehabilitation. I am satisfied that you are unlikely to comply with court orders. You present a high risk to partners and a high risk of reoffending."
