Bronx woman accused of giving 6-year-old son lethal dose of methadone and Nyquil

(CBS) NEW YORK - A Bronx mother is accused of giving her son a deadly dose of drugs, and is now in police custody.

CBS New York reports the family of 6-year-old Carlos Rios Jr. said his drug-addicted mother gave him a mix of her methadone and Nyquil, that ultimately killed him.

The boy's maternal grandmother, Letty Muentes, was part of the group that made the decision to take the boy off of life support after he fell into a coma.

"As soon as he got sick, he was dizzy, he got in a coma and he died," Muentes said.

The boy's family said they are angry at The Administration for Child Services (ACS), claiming the organization didn't do enough after they went to the agency twice for help.

In a statement, the agency said it "received the report of the terribly sad death of the 6-year-old boy in the Bronx, and along with the NYPD, our staff is investigating what led to this tragedy."

The boy's father, Carlos Rios, was still in shock after taking his only child off life support.

"He was a good boy. He liked to paint. He was a good artist, fun kid. It's a tragedy to have me go through this," Rios said.

The mother, Raquel DeLeon, is being held by police. Sources said that, pending the autopsy results, she is being charged with criminally negligent homicide for her son's death.