A 16-year-old Croxteth boy has been charged with the murder of a man attacked in his own home.
Thomas Edmunds, 36, suffered a serious head injury in the attack at his house in Clorain Road, Kirkby, around 10.30pm last Sunday.
Part of the horrifying incident was allegedly witnessed by the victim's dad.
Mr Edmunds, known as Tommy by his family, was taken to hospital where he died on Monday morning, May 10.
Three men from Croxteth have since been charged with murder - 34-year-old Terence Bennett, of Sovereign Hey, 32-year-old Thomas Broadhurst and Kevin Nethercote, 48, both from Regal Road.
They appeared at magistrates earlier this week.
In a statement today, Merseyside Police confirmed a fourth person, a teenager also from Croxteth who cannot been named for legal reason, has now been charged with murder.
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Merseyside Police said: "A 16-year-old boy from Croxteth was arrested yesterday, Saturday, May 15, and has now been charged with murder. He will be kept in custody to appear at Wirral Adult Remand Court tomorrow, Monday, 17 May.
Mr Edmunds' family have paid tribute, describing him as "the life and soul of the party."
In a statement, they said: "Our Tommy was loved by everyone. He could not enter the room without making everyone smile. He was the life and soul of the party.
"We cannot express how devastated we are as family. He was a young man with so much to live for, his life has been cut short. We will miss him so much.
"As a family we have taken comfort from the lovely response from the community and thank them all for all their support.
"Tommy will be sadly missed but never forgotten."
Devastated friends also said they want to give their "happy and jolly" Tommy "the send off he deserves".
A post mortem examination on Thursday, May 12, confirmed that Thomas died of asphyxiation.
Types of asphyxiation include strangulation, choking or smothering.
The attack is believed to have been targeted, police said.
Police stress the investigation continues and anyone with information is asked to contact @MerPolCC or 101 quoting ref. 21000297827. Alternatively, you can contact Crimestoppers anonymously on 0800 555 111.