Arrest affidavits for the man arrested Oct. 7, 2025, on a felony charge for sexual assault on a child provide more details about that arrest as well as his arrest in May on separate charges of assault, child abuse and obstruction of telephone services.

The Summit County Sheriff’s Office’s investigation into Jesus Gonzalo Avila-Mendoza, 29, of unincorporated Dillon, started when a social worker at an Aurora hospital reported Jan. 4, 2025, that a 15-year-old girl admitted herself to give birth, according to an affidavit. 

The social worker told deputies a 28-year-old man, later identified as Avila-Mendoza, claimed to be the girl’s brother but acted more like a father, the affidavit stated. Avila-Mendoza allegedly kissed the girl’s legs while she gave birth, watched her breastfeed and tried to sign the birth certificate as the father before other family members stopped him, according to the affidavit. The birth certificate listed no father.

A previous report that the girl had been impregnated by an older male led nowhere, the affidavit stated, as the girl and her mother were reluctant to share any information about the baby’s father’s identity. After the social worker’s report, deputies were able to identify Avila-Mendoza. 

Deputies spoke with the girl and her mother, the affidavit stated, and the mother told them Avila-Mendoza was the girl’s stepbrother and, although she did not know who the father of the child was, Avila-Mendoza was not the father.

Deputies then spoke to Avila-Mendoza, who said he was at the hospital but was not the child’s father, according to the affidavit. The investigation then closed pending future leads because the girl refused to cooperate, the affidavit stated.

On May 9, 2025, deputies responded to a 911 hangup call involving a man threatening a girl. The girl told deputies she and Avila-Mendoza had been in a relationship for a year and that he was the father of her child, according to the affidavit. She told deputies Avila-Mendoza had started an argument over a misunderstanding and then, when she tried to call 911, took her phone, hung up the call and threw it on the ground, the affidavit stated.

The affidavit stated the girl told deputies Avila-Mendoza grabbed her by the throat and threw her to the floor before leaving the residence.

Deputies arrested Avila-Mendoza May 10, 2025, on charges of assault, child abuse and obstruction of telephone services. Avila-Mendoza said he would like to give a statement, so a detective spoke with him at the county jail.

Avila-Mendoza at first told the detective he and the girl were not a couple, although they shared a bedroom, and gave a different account of the previous night than the girl had provided, according to the affidavit. He also said he was not the father of the child and had not had sex with the girl, the affidavit stated. When the detective stated the girl had told deputies that Avila-Mendoza was the father of her child, he admitted he was. He said he had been in a sexual relationship with the girl for a year, according to the affidavit.

Deputies collected DNA samples from Avila-Mendoza, the girl and the child. In September 2025, results came back identifying Avila-Mendoza as the child’s father, according to the affidavit, and he and the girl had “independently confirmed” he was the father. The affidavit stated the girl was 14 at the time she became pregnant.

Sheriff’s Office deputies arrested Avila-Mendoza Oct. 7 on a Class 4 felony charge for sexual assault on a child. He is scheduled for a preliminary demand hearing in the sexual assault case and a pretrial conference in the assault case on Jan. 6 at 3 p.m. in Summit County Court Judge Robert Gregory’s courtroom.