Saginaw 10-month-old baby dies after abuse by mother's boyfriend, police say

Police have arrested a 22-year-old man they say abused a 10-month-old baby.

Saginaw police say they were called to Cook Children's Hospital on Oct. 1 after a 10-month-old baby was exhibiting symptoms of possible abuse.

The child had both internal head trauma and bruises and had to be placed on life support.

READ MORE: Couple found dead in their North Texas home; person of interest in custody

The baby, Kyson Harris, passed away from his injuries on Friday, Oct. 7.

Dennilson Alejandro Uk (Source: Saginaw Police)

Police arrested the mother's boyfriend, Dennilson Alejandro Uk, and charged him with serious bodily injury to a child.

Saginaw police say they expect to upgrade the charge against Uk, who is not related to the child, once they receive the results of the baby's autopsy. 

The mother of the child is cooperating with the investigation and is not expected to face charges, according to police.

On a virtual fundraiser, Kyson’s mother wrote, "On October 1, the day began like any other and quickly unfolded to one of the worst days of my life."

Kyson’s grandmother said the family is devastated. She said she met Uk in August when she traveled to Fort Worth for a visit. She says her daughter was excited about him. 

The grandmother recalls that Uk seemed polite and nice. She wants justice for Kyson, whom she described as a baby boy who was healthy and very happy.

The Saginaw Police Department and the Texas Rangers are investigating.