Sister of murdered Clodagh Hawe claims a local man told her he saw killer husband driving near the school where he worked in early hours of the morning after killing his family.

In a moving account of her sister’s death, as told to the Sunday Independent, the sister of murder victim Clodagh Hawe has revealed that a local man claims he saw killer Alan Hawe driving in the local area by the school where he worked in the hours after killing his family.

In August 2016, Alan Hawe murdered his wife Clodagh and their three sons Liam, Niall, and Ryan before killing himself in their Co Cavan home. As Clodagh’s family seek justice for her death, it has emerged that a local man may have claimed to have seen Alan Hawe driving near Castlerahan school in Cavan in the early hours of August 29, 2016, the night on which he killed his family.

Hawe was a deputy principal at the school and is believed to have been caught watching pornographic material on his laptop while on the school premises. He killed his family on the eve of his return to the school after the summer holidays.

Read more: Alan Hawe confession letter reveals he “enjoyed” killing his wife and three sons

Clodagh Hawe and her three sons.

Clodagh Hawe and her three sons.

Clodagh Hawe’s sister Jacqueline Connolly told the Sunday Independent that a man claims he made a statement to Gardaí (Irish police) to having seen Hawe drive past the school in the early hours of the morning after killing his family. While she states that it could have been a case of mistaken identity, Connolly says that she believes the local man.

"So, after Alan Hawe murdered his wife and three sons, did he leave the house to go to his place of work, Castlerahan school... perhaps to destroy evidence?" Connolly writes.

She also reveals that counseling notes reveal Hawe was "frequently viewing pornography, suffered regular urges to masturbate and was experimenting with cross-dressing."

"In all likelihood, it would seem if he stated he was caught red-handed and 'it was all going to blow up', the most likely place was the school,” she added, outlining that computer forensics established that 97per cent of the pornography he viewed was on a laptop at his work in Castlerahan school.

Read more: School porn guilt behind Irish teacher’s murder-suicide rampage

Clodagh Hawe.

Clodagh Hawe.

As also reported by the Sunday Independent, the family of the late Clodagh Hawe is now faced with steep bills as current Irish legislation prevents them from inheritance entitlement.

Clodagh’s mother Mary Coll and sister Jacqueline Connolly want to see “laws on succession changed so that the relatives of people who wipe out their families do not benefit financially from their crime.”

It is understood that shortly before the horrific crimes, Alan Hawe transferred money from a joint bank account he shared with Clodagh to his own personal account. It is thought he did this to ensure his family alone could receive the inheritance.

Jacqueline told The Sunday Independent: "At the inquest, we learned that Alan Hawe transferred funds and arranged his affairs so his family would be the sole financial beneficiaries of his estate."

Clodagh Hawe's bereaved family learned that under the Succession Act 1965, “the Hawe family alone are entitled to all the proceeds of the estate."

As such, Clodagh’s family are now faced with more than €50k ($56k) in funeral and legal costs.

Alan Hawe.

Alan Hawe.

Clodagh's relatives are now insisting the law be changed: "It must be reformed as soon as possible so that murderers, or their family if they end their own life, do not financially benefit from their crime.

"Last week I also spoke with Jim O'Callaghan, Fianna Fail's justice spokesperson, who said it must be a priority to change this law.”

Jacqueline and her mother Mary have also met with Minister for Justice Charlie Flanagan regarding the matter.

"Let's get this law changed immediately," Jacqueline said. "Please, please stop financially rewarding the perpetrators of femicide and familicide.”

Alan Hawe brutally killed his own wife and three sons before taking his own life at his Cavan home.