A man has been arrested over the shooting of another man and his partner in west London.
Dothan Gordon, 32, died at the scene in Ealing on Wednesday.
His 28-year-old partner also suffered gunshot wounds and was taken to hospital to be treated for a shoulder injury.
A Scotland Yard spokesman said a 29-year-old man had been arrested at an address in Ipswich on suspicion of murder on Sunday evening.
The spokesman added that officers from Suffolk Police had assisted with the arrest.
The shooting happened at 14:50 BST on Wednesday at a residential address in Glenpark Court, Felix Road.
A post-mortem examination confirmed Mr Gordon died from a gunshot wound.