Eerie moment: Grandfather takes children to McDonald's after murdering their parents (4 photos + 1 video)
Derek Martin, 67, a resident of Brighton, England, remained on friendly terms with his stepdaughter Chloe Bashford after his divorce. During a visit, the stepfather argued with Chloe over money and struck her with a hammer. 
After Martin finished with the 30-year-old mother of four, her 33-year-old husband, Josh, returned home from work. Seeing Martin with a knife, he rushed upstairs. The killer followed him. He stabbed Josh and then strangled him. 
Afterwards, Martin changed his clothes, picked up his grandchildren from school, and drove them to Costa and McDonald's in Newhaven. CCTV footage shows him throwing Chloe's phone into the bushes near Sainsbury's and continuing his walk with the children.
Investigators believe he tried to prevent the children from finding their parents' bodies by removing the door handles in the house. 
After the walk, Martin took the children to his grandmother's, drank beer by the sea, and then surrendered to police, saying, "I killed two people."
After his confession, officers searched the Bashford family home and discovered the bodies of Chloe and Josh.
Martin claimed to suffer from depressive disorder, which limited his responsibility for the crimes he committed.
The jury at Lewes Crown Court rejected his plea of diminished responsibility and found him guilty on two counts on October 24. 
Detective Chief Inspector Kimball Edie expressed gratitude to Chloe and Josh's children and their families for their patience throughout the investigation. While the outcome of the trial will not change the past, he believes it will help them close this chapter and begin a new one.
Marco Brooke of the Crown Prosecution Service stated that the defendant's claim of loss of control was not consistent with the evidence. Martin had been waiting for Josh to arrive with the intention of killing him.
The couple's loved ones described them as "wonderful" parents who would do anything for their children.
