Did you witness the incident or have any information about what happened? Email tips@dailymail.com

A man was arrested soon after police arrived on suspicion of women's murder

Sandra Seagrave, 76, was also killed when she tried to intervene to save her

A newly-married teacher was today named as the second victim of the horrific double murder on a suburban street in Sussex.

Friends and neighbours said Amy Appleton, 32, was battered to death outside a house in Crawley Down on Sunday morning.

She died alongside her neighbour, named locally as Sandra Seagrave, who is believed to have been fatally attacked with her own walking stick when she intervened to try to help Mrs Appleton.

The suspected attacker, a 37-year-old man, who police have said was known to one of the two women, remained in hospital under police guard today at Royal Sussex County Hospital in Brighton.

He was found badly injured inside the property and arrested on suspicion of murder. Officers have described his condition as 'very unstable'.

Crawley Down murder victim Amy Appleton pictured at her graduation in 2010 with her husband Daniel

Amy Appleton, 32, (pictured with her husband Daniel Appleton) worked as teacher at the Copthorne Church of England School, close to her home in Crawley Down, West Sussex

Mrs Appleton worked as a teacher at the Copthorne Church of England School, close to her home in the town.

Her husband Daniel runs a specialist car engineering company.

Parishioners at St John's Church Copthorne, which is aligned with the school, today told of their sadness at her tragic death.

One told MailOnline: 'We are all heart-broken about what happened to Amy. She was such a lovely woman and a brilliant teacher.'

Another added: 'It's such an awful thing to have happened.'

One witness told MailOnline that he watched police officers ferrying young children out of an address by the crime scene, holding up blankets between the children and the bodies on the road - which were themselves draped with sheets - to shield the view from the children.

Crawley Down murder victim Amy Appleton pictured with her husband Daniel at her mother Linda's second wedding in 2009

Amy Appleton pictured at her graduation in 2010 with her mother Linda

Sandra Seagrave is believed to have intervened to try and stop the bloodbath that unfolded on Hazel Way in Crawley Down, West Sussex, at around 10.20am on Sunday

Vicar of St John's Church Copthorne Wim Mauritz told MailOnline that while Christmas is a happy time it can also be a time of extreme sadness for others.

He said: 'There are many only people over Christmas, particularly those who have recently lost their loved-ones.'

Former neighbours described Amy Appleton as a 'lovely woman' and enjoyed being part of their community.

One told MailOnline: 'Amy was such a lovely person. She loved getting involved in local stuff. She loved being part of community, particularly the church and school.'

Amy Appleton is believed to have been beaten to death outside her home in Crawley Down. Another woman, Sandra Seagrave, was also killed when she tried to intervene to save her.

Mrs Appleton (pictured at her graduation in 2010) worked as a teacher at the Copthorne Church of England School

People place flowers at the scene on Hazel Way in Crawley Down, West Sussex today

The police have yet to confirm her name officially.

'Good Samaritan' Sandra Seagrave, 76, was battered to death 'with her own walking stick', while trying to help her neighbour, 32, as she was attacked in the street.

The elderly victim, named locally as Sandra Seagrave, is believed to have intervened to try and stop a man attacking the other woman on Hazel Way in Crawley Down, West Sussex, at around 10.20am yesterday.

Flowers were placed at the scene this morning in Crawley Down, as details of the incident continue to emerge

People left flowers this morning where the incident took place on Hazel Way in West Sussex

Floral tributes to Mrs Appleton and Mrs Seagrave were left at the scene of Sunday's attack

Witnesses said they heard a man shout 'I'm going to kill you' before Mrs Seagrave, known as Sandy, was found dead on the street.

The man, 37, was found badly injured inside a house and arrested on suspicion of murder.

He is now in a 'very unstable condition' under guard at Royal Sussex County Hospital in Brighton.

Police on Hazel Way in Crawley Down, West Sussex, where a horrific double murder happened on Sunday

Ms Seagrave's heartbroken brother Dan Peckett, 84, said outside her house yesterday: 'I'm going to miss her so much. I adored her. I kept in touch with her all the time on the phone.'

Mr Peckett, of the nearby village of Copthorne, added: 'It's a big shock at the moment.

'I found out what happened on the telly. I haven't been told anything yet.

'The police have told me to go home and they'll speak to me later.'

Paramedics found the two dead women outside the house and a man seriously injured inside

Grandfather Mr Peckett's son Michael, 60, said Mrs Seagrave tried to help a woman who was being attacked by a man.

He claims the man then used a knife to slash his own throat.

Michael said: 'Her sister Maureen said she'd gone to help the lady who was getting a hiding and he attacked her as well.

'But the knife was only used to cut his throat. Maureen said she'd seen her walking past her house.

'We didn't even know where she was attacked. She used a crutch or walking stick, but Maureen said she didn't have the crutch that day.

'The guy's cut his throat and he's still alive. I'm absolutely gutted. How do you put it into words? It's just mad. She helped anybody that woman.'

Shocked neighbours paid tribute to Sandra today and revealed that she was a widow whose husband had died five years ago.

Ian Pratt, 61, an engineer, told MailOnline: 'Sandra was a bit abrupt but when you got to know her you realised she was a lovely woman.

'Sadly her husband Frank passed away about five years ago so she was on her own.

'She had had a dog which died. But she still liked to walk around a lot.'

Another neighbour who gave his name as Dennis added: 'She was known as Sandy although her name was Sandra. It's absolutely tragic.'

Mr Pratt, 61, said it was possible Ms Seagrave may have intervened while walking past the horrific incident.

The father-of-two, a stretch ceiling businessman, said today: 'I only found out last night from my neighbour. He came round to ask me if I realised Sandy had been involved. We're in complete shock.

'I do know she'd been walking around the village everyday because she had a leg injury and had been trying to build up her strength. We did think that if she happened to be passing and saw an incident she would challenge them about what they're doing.

Did you witness the incident or have any information about what happened? Email tips@dailymail.com Advertisement

'She was very forthright and could be quite direct. She wasn't afraid to speak her mind. She obviously didn't realise she was dealing with someone very irrational. She was just in the wrong place at the wrong time - unless she knew the people.'

He described Ms Seagrave as a 'great animal lover', adding: 'She was very much a community person, big-hearted and caring. She was an avid gardener.'

He added: 'We were quite concerned initially because we've got friends who live in Hazel Way, but they were okay.

'Then we were thinking it was no one we know, and my neighbour came round to tell me. It's so sad.'

Retired milkman Tony Jones, 74, described the elderly victim as a 'lovely lady and she did not deserve this'.

He recalled: 'I used to go by on my float and she would say hello.'

A 70-year-old grandmother, who has lived in the area all her life but did not want to be named, said of the elderly lady who died: 'It is just so sad. It feels like she was walking in the wrong place at the wrong time.

'It has always been a friendly and safe area. I have never felt scared walking out at night.'

Initial reports suggested that a knife had been involved in the murders, but Sussex Police have told MailOnline that they strongly refuted this claim.

The attacker is understood to have beaten the two women before leaving them for dead in the street.

Police immediately set up a cordon around the house in Hazel Way, Crawley Down, West Sussex and drafted in forensic experts to begin a search for evidence.

White sheets covered both bodies which lay in the road where they fell and police threw up cordons either side of the horrific scene.

Initial reports suggested that a knife had been involved in the murders, but Sussex Police have told MailOnline that they strongly refuted this claim. Pictured: An officer at the scene yesterday

Flowers on Hazel Way yesterday, where officers continue to inspect the house to gather evidence

The force gave no further details about the arrested man, the cause of death or how the violence unfolded.

Neighbours have left floral tributes to two women murdered.

After laying a bunch of flowers, one passer-by said: 'It is a horrible thing to have happened. Who would have believed this could happen in a sleepy place like this?'

A candle with the message 'RIP Sandy XX' on its glass holder was placed near a small cuddly toy bear among the collection of flowers, while a red rose had been drawn on the front of a handmade condolence card marked 'Amy'.

It read: 'To Amy, Rest in peace. You were such a lovely neighbour to us and the rest of the village. We wish the best to all of the family.'

Another card attached to a floral tribute said: 'A beautiful lady. Taken far too soon. So many fond memories of Amy growing up and blossoming into a fine young lady. Our thoughts are with you at this sad time.'

Residents near the crime scene turned off their Christmas lights in tribute to those who had been killed, according to a local homeowner.

Another neighbour on Hazel Way, who asked not to be named, said: 'This is a terrible scene - and so near Christmas. Those poor people, they must have been terrified in the moments before they died.

'This is normally such a quiet place, nothing nasty ever happens here. We are just a nice ordinary estate with no trouble.

'Everyone is really struggling to come to terms with what has happened. The paramedics were here really quickly and were brilliant but sadly there was nothing they could do for two of the stab victims.'

The seriously injured man has been taken to Royal Sussex County Hospital in Brighton was later arrested on suspicion of murder. Pictured are flowers at the scene

Forensics officers from Sussex Police were seen examining the property in Crawley last night

An ex-police officer neighbour said his friend, who lives opposite the house where the attack occurred, heard shouting inside before people ran out.

'The neighbour that I know heard shouting and swearing and heard 'I'm going to kill you,' he said.

'There were three people involved - there a bloke, a woman and a do-gooder passerby.'

A police statement said: 'Detectives are investigating the murder of two women, aged 32 and 76, outside a house in Crawley Down on Sunday morning (December 22).

'A 37-year-old man, who was found seriously injured inside the house in Hazel Way, is under arrest on suspicion of murder. He is in a very unstable condition at the Royal Sussex County Hospital, Brighton.'

White sheets covered both bodies which lay in the road where they fell and police threw up cordons either side of the horrific scene

Detective Chief Inspector Alex Geldart, of Surrey and Sussex major crime team, is leading the investigation.

She said: 'This is a tragic incident which has led to the death of two local women, one of whom was known to the suspect.

'Members of the public, police and paramedics did all they could to help the victims but sadly the two women died at the scene.

'I extend my heartfelt sympathies to their families, who are being supported by specialist trained officers. I ask that people respect their privacy at this distressing time.

'Extensive enquiries are taking place along with a forensic examination, and any speculation by the media as to what has happened is unhelpful. This was not a knife attack. A cordon will remain in the area while we gather evidence and we appreciate the support and understanding of local residents.'

Did you witness the incident or have any information about what happened? Email tips@dailymail.com