text: Police are hunting for a man who walked into a house in Los Angeles on Sunday and shot a sleeping eight-year-old boy (above) in the head . Police are hunting for a man who walked into a house in Los Angeles on Sunday night and shot a sleeping eight-year-old boy in the head, leaving him critically injured. The suspect, who is described as Hispanic, medium build and wearing a grey hoodie at the time, apparently had no motive for staging the attack in the 11000 block of Wagner Street in Del Rey. According to the victim's father, the attacker walked in through an unlocked front door around midnight and proceeded to fire shots after a heated conversation. The father then ran into the boy's bedroom to shield him as the gunman followed shooting, authorities said. Ammunition plowed through the wall and the bedroom door, although it was unclear which bullets struck the boy. The lath and plaster of the wall are believed to have slowed the shots. The boy was rushed to Ronald Reagan UCLA Medical Center where he underwent surgery for a head wound. As of Monday, he was listed in critical but stable condition. His great-aunt confirmed to NBC LA that his condition was continuing to improve. 'I know that at some point he did say something. They said he was going to be OK,' she said. No other family members were injured in the incident. The young victim's mother and 17-year-old brother were also reported to be in the bedroom,  while the boy's grandmother was in another room. Apparently the front door and security gate had been left open as the father had been expecting his 20-year-old son to return. Scene of the crime: The suspect, who is described as Hispanic, medium build and wearing a grey hoodie at the time, apparently had no motive for staging the attack in the 11000 block of Wagner Street in Del Rey . Unprovoked: According to the victim's father, the attacker walked in through an unlocked front door around midnight and proceeded to fire shots after a heated conversation . Shootings are rare in the residential neighborhood, police said. Indeed, neighbors told CBS News that the family has lived in the residence for more than a decade with no problem. 'According to the family, they did not recognize the suspect' and there was nothing in the house that indicated drugs or other illegal activity, Los Angeles Police Capt. Nicole Alberca said at a news conference Monday afternoon. The names of the family members have been withheld but a photo of the boy has been released. The image shows him smiling with long, wavy, golden-brown hair down to his shoulders. Although the gunman is believed to have fled on foot, anyone who may have seen a vehicle leaving the area is urged to call Los Angeles Regional Crime Stoppers at (800) 222-TIPS.
target: The suspect apparently had no motive for staging the attack in the 11000 block of Wagner Street in Del Rey, Los Angeles, on Sunday night .
  He is described as Hispanic, medium build and wearing a grey hoodie .
  According to the victim's father, the attacker walked in through an unlocked front door around midnight and proceeded to fire shots .
  As of Monday, the boy was listed in critical but stable condition .