Around 6:50 a.m., deputies responded to a call that came from inside a Courtyard Cottages apartment on Power Inn Road. When they arrived at the apartment, deputies found 6-year-old Ralph Serna dead.
"It's a sad case all around from the investigative standpoint, from the public standpoint and from the standpoint of the family," said Sgt. Shaun Hampton. "I couldn't imagine being part of that family and having that occur."
Sacramento County Sheriff's Department investigators later arrested Serna's older half-brother, 22-year-old Miguel Uribe, and his brother's girlfriend, 26-year-old Angelica Garcia.
The couple lived in the home with Ralph. The 6-year-old's half-brother was in charge of his care but their mother had full custody of him. Ralph's father, James Serna, told FOX40 he received child support papers from Uribe, which detailed that the 22-year-old was the "custodial parent."
Serna said he was never kept in the loop when it came to his young son's care. He had wanted to file for joint custody of Ralph before the boy's death.
"I loved every minute with him. He loved me and I loved him too," Serna said.
When he spent time with Uribe and helped raise him, Serna said he never showed signs of being abusive.
Uribe, who is being held at the Sacramento County Main Jail without bail, was charged with child abuse resulting in death. Garcia was charged with endangering the life or health of a child. Garcia's bail is set at $500,000.
Investigators have not reported the details surrounding the boy's death.
"I'm just very distraught right now, I don't know. Words can't explain how I feel," Serna said.
Both suspects will be in court Wednesday.
Family of the young boy have started an online fundraiser in his name. To donate, visit gofundme.com/ralph-anthony-serna.