Harry Veevers, 64, from Rochdale in Greater Manchester, died at his home near the coastal city of Mombasa in Kenya on February 14, 2013.
A criminal investigation by Kenyan police has now found the death was suspicious and the director of public prosecutions has recommended that murder charges be brought against Mr Veevers’ wife Azra Parvin Din and their two daughters Helen, 25, and Alexandra, 23, all understood to be British nationals.
The official cause of death was recorded as a heart attack and stroke but his sons became suspicious when their father’s second wife buried his body three days after his death and barred them from the house.
They claimed that their stepmother, together with the couple’s two daughters, poisoned their father with a pesticide after he announced he was leaving, and that corrupt Kenyan police officers colluded to cover up the death.
The two brothers obtained a court order to exhume the body and the following January, an autopsy was performed which confirmed the presence of cyhalothrin, a highly-toxic pesticide normally used to control insects in cotton crops.
On Tuesday, an inquest resumed in Mombasa into the death with evidence from Mr Veevers’ son Philip, a medical technician in the British army.
He told the hearing he and his brother Richard became suspicious when their stepmother tried to block them from seeing the body at the hospital.
“Azra was agitated when we asked her why my father’s body had not been taken for a post-mortem,” he told the inquest, according to Kenya’s Star newspaper.
“She said Muslim bodies are not taken for post-mortem,” he said, adding that the response perplexed him because his father had never converted to Islam.
He said that when they were allowed a few moments alone with his body at the mortuary before the burial on February 17, they became increasingly concerned on seeing red and purple marks on his body.
“We an experienced medical technician in the army who is versed with causes of death, I suspected my father had been poisoned,” he was quoted as saying.
In interviews with local media, his brother Richard Veevers, said to be a martial arts instructor from Halifax in Yorkshire, said his father’s health was previously good and his sons had been “surprised” to learn he had died of a heart attack.
He said a doctor called to attend to their father had told them he was foaming at the mouth moments before he died.
Among the documents handed to the coroner handed was a letter to Kenya’s director of public prosecutions dated November 2, 3013,
In it, Richard Veevers alleged that “corrupt police” had demanded a bribe to exhume his father’s body and helped “cover up” his murder.
“After the exhumation order was issued our client, Richard Veevers was closely monitored and put under surveillance of CID and was followed everywhere,” his lawyer Kinyua Muyaa wrote.
“We set out this background to show you that those who murdered Harry Roy Veervers are afraid of the results of the post-mortem. Our clients are justified to believe that the police have been corrupted to cover up the murder and put up pressure upon them to stop their clamour for exhumation of the body.”
A report compiled by Keriako Tobiko, the Kenyan director of the public prosecution, recorded the suspicions of Richard Veever and his brother Philip, a medical technician in the British army.
Mr Tobiko wrote that he had recommended murder charges be brought against Mrs Din and her daughters, who are also registered at an address in Basingstoke, Hampshire.
“I find that there is enough evidence to have the suspect answer a charge of murder contrary to section 204 as read with section 204 of the penal code cap 63 laws of Kenya,” he wrote.
Neither lawyers for the Veevers brothers or Mrs Din were available for comment.