DENVER -- Denver Mayor John Hickenlooper said he didn't know if the deaths of two children who received questionable oversight by his Department of Human Services were managed properly.

"Is this department being managed well given what you have seen in these cases?" asked CALL7 Investigator John Ferrugia.

"You are asking me to make a judgment where I don't have sufficient information," Hickenlooper said. "I need to get the information you have so I can assess that."

Hickenlooper was discussing two cases highlighted this week by CALL7 Investigators that questioned the deaths of two children.

Destiny Lewis died after DDHS determined her mother, who had cognitive and emotional problems, could care for her. Despite repeated calls from hospitals saying the mother couldn't care for Destiny, DDHS allowed the child to go home. Her oxygen tubes fell from her nose and she died.

The second case was a Denver child who was placed in a Colorado Springs foster home. Angel DeHerrera died of strangulation while playing on a trampoline. He and his sister had been left at the home despite another DDHS case worker removing a teen mother and her baby who were under her care -- -- less than two days before DeHerrera's death.

Hickenlooper said there are communications problems in the both cases but could not say whether the department should change policies or management.

"No one is going to argue that our communication is what it needs to be," he said. "We are in the 21st century and we have technology available and should be able to have instant connections of all our files of all our workers and certainly we're not there yet."