A 13-year-old boy was tied up and forced to watch his dad bleed to death in an armed raid in the Bahamas.
British-born Edgar Dart, 56, was visiting his mother when armed raiders burst into the family home.
The dad confronted the men who shot him in front of his family.
As Mr Dart lay dying on the floor, the killers used duct tape to tie up teenage son George and five relatives before fleeing with cash and jewellery.
Mr Dart's brother-in-law Philip Poole said his own son, Pip, 29, was also attacked and suffered machete wounds.
Mr Dart, who lived in Winnipeg, Canada, was visiting his mother in the island's Emerald Bay neighbourhood when the attack happened at around 7am local time on Tuesday.
Mr Poole said: "Edgar was a tough guy and as soon as the men burst into the house he remonstrated with them. One of the raiders then shot him in the chest.
"The gang then tied everyone up, including his mother Joy and George. I have been told they were forced to look on helplessly as Edgar lay on the floor bleeding to death in front of them.
"It took him around an hour to die and there was just nothing they could do for him.
"The gang simply ransacked the house taking money and jewellery and then left. We just cannot believe what has happened.
"It is so difficult being so many miles away when family members have been involved in something as horrific as this.
"The police report on the killing is very scant. Crime is on the increase on the island and they do not want such matters reported because they fear it will damage the tourist industry."
The house near the city of Freeport belongs to Joy, who is a 79-year-old widow. Her other son Colin, 55, his wife Alison and their 15-year-old son Luke also witnessed the murder.
Mr Poole, from Canterbury, added: "I do know that Alison managed to finally free herself and raise the alarm but by then it was too late for Edgar who had bled to death.
"The worst image we have from this tragedy is George bound and gagged watching his father die – and there was nothing he could do to help him."
A police spokesman said: "Police received information that a male was fatally shot at a residence in the Emerald Bay area.
"Officers responded and it was reported that sometime around 7am on Tuesday a male reported that while at home with his family, three masked men armed with a handgun and a machete entered their home and they were robbed.
"An altercation occurred between the assailant and one of the male residents, who was fatally shot.
"Medical personnel responded and the body was pronounced dead at the scene by doctors from the Rand Memorial Hospital."
Officers appealed for information to track down the gang.
A Foreign Office spokesman said: "We are aware of the death of a British national in the Bahamas and we are providing consular assistance."