A man was seriously injured escaping from an armed intruder who burst into his house.
Police said a couple were confronted by the intruder as they answered the door to their Hastings home at about 22:00 GMT on Sunday.
The man then climbed out of a window on to the roof to get away, but fell to the ground. He was treated for several injuries including a punctured lung.
Officers have now released an e-fit of a man they want to speak to.
The injured man remains in hospital in a serious but stable condition, Sussex Police said.
The suspect is described as black, between 5ft 6in and 5ft 7in tall, of stocky build and had been wearing a hooded green top.
He is believed to be missing one of his front teeth.
The intruder is thought to have left the scene in a dark saloon car.
Det Sgt Sophie McGarel said the couple suffered "a frightening ordeal" and urged anyone with information to contact them.