Police said the child's father, Rolando Ortiz, 37, became angry because the energetic toddler had prevented him from going to sleep, according to CBS Chicago. The suspect allegedly confessed to police and said he had been heading to Mexico.
A father in Chicago is accused of almost decapitating his young son after the boy's body was discovered in a trash bag in their home, police said. As witnesses called 911, Ortiz fled from the scene of the crime.
"I have kids of my own and I mean it's heartbreaking to hear something like that to a 2-year-old", said neighbor Jairo Cholico, ABC7 reported.
Mateo's "brutal and horrific slaying" capped off a hard week and a half for the Chicago Police Department, Superintendent Eddie Johnson told reporters Thursday. Ortiz allegedly grabbed a kitchen knife, held his son down, and cut his throat. Police later traced his phone to Kankakee, where Illinois State Police and the Federal Bureau of Investigation arrested him.
Ortiz's affidavit revealed that on Thursday, he was alone with 2-year-old Mateo Garcia Aguayo at their 2700 block of South Avers Avenue as his wife, who works at the same company as Ortiz, had just left for work. "He was just an innocent kid whose trust and safety was betrayed by one man he should never have to question: his father". Investigators said Ortiz and his wife work different shifts at the same business.
At Thursday's press conference, Deenihan said it will take time for Mateo's relatives as well as his detectives - many of whom have small children around Mateo's age - to recover from Wednesday night's trauma.
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Deenihan said the gruesome crime was traumatising to both the boy's family and the responding officers.
Ortiz has no prior arrests, Deenihan said.
'These are the kinds of tragedies that keep police officers working without sleep, ' Johnson said.
Police said six other children live at the home but they were not there when Aguayo was killed.
He added later: "I'd like to say to Mateo's family that as a father, I know there is nothing we could ever do to bring Mateo back to you, but I hope this would give some level of closure as you keep Mateo's memory close to your hearts".
A small cross bearing Aguayo's name and a basketball next to it was placed in front of the apartment where Ortiz lived.
According to the Chicago Tribune's data, 674 homicides - an average of almost two a day - occurred in the city in 2017.