Officers responded about 4:15 a.m. to the 20100 block of Elkwood Street, where the unidentified man was bleeding heavily while walking away from the residence, a Los Angeles Police Department spokesperson said..
The wounded suspect was transported to a hospital in unknown condition. No other injuries were reported.
The doorbell video shows a man, apparently carrying a garden hoe, approaching the door in the darkness. After trying to turn the doorknob, he slams his shoulder against the door, toppling the camera from its mount.
Joseph Santos said his parents and sisters were inside the home when the intruder made his way upstairs to the second floor. Santos, who lives nearby, said he received a call from his mother.
"They struggled for the door, the guy eventually broke the door open," Santos told ABC7. "My dad acted in self defense. The guy jumped in the room and they all warded him off. My sisters took a vacuum cleaner and started hitting him over the head."
Before the break-in, neighbors said, other surveillance cameras recorded the suspect as he made his way through their yards.
"My thought is everybody has a right to defend himself," said Tigran Sargsyan, who lives near the Santoses' home. "The suspect was on my property, I heard at night. Someone was walking on my roof. My neighbor was aware, she called me at night. My phone was on silent, I didn't hear, but she was alone. She needed help, she called me, I went out and she was very scared.
Another resident, Vinod Manchhani, said he has lived in the neighborhood for 30 years.
"I know each of my neighbors, pretty much," he said. "So when I heard these sirens going at 3 o'clock in the morning I came out. I've been awake since 3, and I want to make sure everybody's safe and sound."
Elkwood Street was closed in front of the home as an investigation got underway.