Police investigating the "cold blooded and calculated" murder of a man killed in his Staffordshire home are offering a £20,000 reward to catch his killers.
Richard Deakin was shot in the chest while in bed at his home Meadway Street, Chasetown, on 5 July.
The reward was offered on BBC's Crimewatch programme on Wednesday.
Police have released CCTV images of a masked man entering Mr Deakin's garden carrying a weapon before leaving with an accomplice in a Vauxhall Corsa.
Two men have been arrested and released on bail as part of the inquiry.
Detectives have said they believe those responsible have links to the Wolverhampton, Tipton or Coseley areas in the Black Country.
'Pick up the phone'
Det Ch Insp Dave Garrett, from Staffordshire Police, who is leading the investigation, said: "We're determined to catch Richard's murderers and are offering a substantial reward to encourage those who have information to come forward.
"There's every chance that someone who knows the killers saw last night's programme and we're urging them to pick up the phone.
"As displayed in the CCTV footage, Richard's murder was calculated and cold-blooded.
"We need to take these people off the streets and bring closure for Richard's family."
The car police believe the gunman escaped in was found abandoned less than a mile away in Coppy Nook Lane, police said.
Mr Deakin moved to Chasetown with his fiance Megan in 2008 where they lived with their daughters, aged four and two. He was alone at the time of his murder.
The reward is being offered for information leading to the arrest and conviction of those responsible, police said.