Flowers surrounded a small blue casket as loved ones cried and hugged at the funeral for Tyler Huston.
The 9-year-old was killed last week when three pit bulls mauled him.
During the funeral, his foster mom expressed grief and frustration.
"I just know something went terribly wrong," she said.
Hours before Huston was laid to rest, his father John spoke about his love for the boy who he was unable to care for.
"I loved my son very much, I gave him everything I didn't have when I was growing up," Huston said.
Huston stood by attorney Moseley Collins after filing a claim against Sacramento County Child Protective Services
Next month, Collins plans to file lawsuits against CPS and Tyler's foster care.
Collins says because of Huston's mental disabilities, CPS took custody of Tyler two years ago.
The fourth-grader was killed while staying the weekend at his half sister Alexandria Griffin-Heady's trailer in Yuba County.
Collins says that should never been allowed.
"They knew, or should have known, there was no working bathroom there, they knew, or should have known, that the 24-year-old girl was gonna be gone and leave the boy alone with these dogs," said Collins.
Griffin-Heady's attorney tells FOX40 she had been working with CPS to adopt Huston and that she always made sure the boy was safe.
Collins feels Huston's death highlights major flaws in the system.
"We ought to change the law to make CPS more responsible and more accountable for the children they take care of," said Collins.
Amid the conflict surrounding this loss, family friends and teachers are trying to come to grips with the tragic end to a short life.
The Yuba County Sheriff's Department is still looking into whether criminal charges will be filed.
CPS tells us they are working with investigators.
2016 - U.S. DOG BITE RELATED FATALITIES - 2 (CHILDREN)
PIT BULL - 1
LINDA YUBA COUNTY CA
PIT BULL MIX - 1
INDEPENDENCE GRAYSON CO VA (pit bull/rottweiler mix?)
1-3 - TYLER TRAMMELL-HUSTON - 9 - LINDA YUBA COUNTY CA - THE BOY WAS IN FOSTER CARE AND THE SYSTEM ALLOWED HIM TO VISIT WITH HIS 24-YEAR-OLD HALF SISTER WHO LIVED IN A TRAVEL TRAILER WITH 3 PIT BULLS. IT APPEARS SHE LEFT HIM TO GO TO WORK AND WHEN SHE CAME BACK HE WAS MAULED TO DEATH.
1-8/9 - PAYTON LYRIK SAWYERS - 15 MONTHS - INDEPENDENCE GRAYSON CO VA - ATTACKED BY A PIT BULL/ROTTWEILER MIX?? ON THE NIGHT OF JANUARY 6 AT A HOME OF 2 PEOPLE SAID TO BE HER BABYSITTERS - SHE WAS RUSHED TO A HOSPITAL IN NC WITH SEVERE HEAD INJURIES AND WAS PLACED ON LIFE SUPPORT- SHE DIED ON JAN 8 OR 9, 2016.