A Chicago boy was beaten to death Friday on what family members said was his fourth birthday.
Christopher Valdez died at his home near 51st and South Trumbull Avenue, in the city's South Side. A police spokesman said it's believed the boy died of blunt force trauma.
"My niece's boyfriend beat the baby to death, and I don't know exactly what happened. I've never even met the man," said Steven Valdez, the boy's great uncle.
Another uncle said he arrived at the home with a birthday cake for the youngster immediately after the incident. He said he restrained the boyfriend until police arrived.
The boyfriend, who was described as anti-social and violent, is in police custody. Family members said the boyfriend two weeks ago severely beat a dog for relieving himself in the home. They said they're in shock that a grown man could take out so much anger on a child.
"I just can't understand how anybody could do that," said Santiago Valdez, the boy's great-grandfather. "I just can't. It's just a shock to me."