Search warrant released in Fitchburg homicide - WKOW 27: Madison, WI Breaking News, Weather and Sports

FITCHBURG (WKOW) -- Police say the Madison area man accused of intentionally hitting and killing his young son with his SUV this week had threatened to hurt the child.

According to the search warrant in the case, suspect Jesus Castillo-Dimas said to his ex-girlfriend and the boy's mother, "You'll see what is going to happen to you and your child."

Moments later, the warrant states he drove his SUV into the mother and son, killing two-year-old Yandel Castillo-Castillo.

After hitting the two, authorities say Castillo-Dimas attacked the mother. According to the search warrant, the man she had been riding with told officers he heard Castillo-Dimas saying, "I am going to kill you" several times while he stabbed at the woman.

When police detectives arrived on scene, they say Yandel was still pinned underneath the SUV's rear driver's side tire.

Yandel was pronounced dead at the scene by Dane County Medical Examiner Colleen Little.

The warrant indicates Castillo-Dimas was upset his relationship with the mother had ended.

Castillo-Dimas was arrested on tentative charges of first degree intentional homicide and attempted first degree homicide.