INDIANAPOLIS -- A man was arrested Sunday after his mother and two boys were fatally stabbed on Indianapolis' northeast side, WRTV-TV in Indianapolis reported.

Indianapolis Metro police said Sean V. Wright, 35, killed his mother and two of her foster children -- a 16-year-old and a 10-year-old boy -- leaving a grisly scene behind.

Police said they were called to a home just after 1 a.m.

Police said that when officers arrived, they found Rodney Anderson, 16, lying on the front porch. He had been stabbed repeatedly.

Anderson was taken to Wishard Memorial Hospital, where he later died.

Officers said they saw a blood trail going across the road to the back of another home across the street.

Police went inside, where they found Demonte Norton, 10, and Flossie Wright, 60, both of whom had also been fatally stabbed, officials said. They were pronounced dead at the scene.

Officers said the home had been ransacked as the victims tried to fight off their killer.

"The 16-year-old was fighting for his life. He was able to get out of the house and run across the street," said IMPD Lt. Jeffrey Duhamell. "They know the neighbors ... and pounded on the door for help."

Police said Demonte had been staying with Flossie Wright for about a year.

"It seems like it's not even real. Even though I hadn't seen him in so long, that was my little man," said Demond White, Demonte's father. "He (Sean Wright) killed his mother. He killed another child, and he killed my son. So, whatever happens to him, I don't care. I know that God's going to deal with him eventually."

Teria Anderson, Flossie Wright's granddaughter, said: "She had plenty of foster kids. She always had them in and out of her home. They loved her like they were her own."

Sean Wright was known as "uncle" to the slain foster children, the television station reported.

Investigators said they don't know why the stabbing happened, but said they had been sent to the home on domestic disturbance calls in the past.

Police apprehended Sean Wright without incident just after 3 p.m. Sunday after an intensive search. Wright had some cuts in his abdominal area, police said.

"The mother was basically the cornerstone of the neighborhood. She was well-known. She was caring for foster children," Duhamell said. "This is a very tragic incident."