Alex Bury, the son of a British woman killed during her birthday party while on holiday in Turkey has told how he tried to reason with the gunman to stop the attack.
The 24-year-old told the gunman, gardener Veli Acar, that "it didn't have to be this way".
Catherine Anne Bury was gunned down as she cowered in the bathroom of the villa in Dalyan, a resort in southern Turkey.
Mr Bury and his grandmother Cecilia Bury needed hospital treatment after being caught up in the shooting.
Speaking from his bed in Mugla University Hospital, Mr Bury, 24, told the Times he recognised the gunman as Acar, their gardener who was said to have been in a relationship with Ms Bury, who was known as Anne.
Acar had apparently threatened the family earlier that weekend but was later released by police and returned, armed, to the Bury villa in the resort of Dalyan at around 5am on Monday.
Mr Bury, who has a leg injury, said: "I tried to reason with him. I told him it didn't have to be this way.
"He lifted the gun to his shoulder and gestured for me to go through to my mother and grandmother's room.
"They had heard me talking and had locked themselves in the room."
Acar then gunned down Ms Bury as she cowered in the villa bathroom, it was reported.
The Turkish ministry of culture and tourism confirmed the death of Ms Bury, who lived in the North Yorkshire village of Swainby, and said her son, Alex, remained in hospital. Ms Bury's mother, who is in her 80s, has been discharged after treatment.
Acar is said to have given himself up after the shooting and is due in court.
The ministry statement said: "The death of British citizen (Catherine) Anne Bury, and the wounding by shooting of her son Alexander Gerard Bury and mother Cecilia Bury, in Turkey's south-western town of Dalyan is currently being investigated by the relevant authorities.
"The chief suspect has been arrested and is currently under custody, while a full investigation is under way."
News of the shooting shocked neighbours in Ms Bury's village who said the family were lovely people who never got in trouble.
People living in Swainby said Ms Bury's son lived with her and is in his early 20s. Her mother is from Middlesbrough.