ORANGE COUNTY, Fla. -

Three 16-year-olds are facing home invasion and murder charges in connection with the beating death of a senior citizen.

Esteban Calderon, 67, died Sunday, four days after police said Luner Axcius, Victor Wriden, and Ronald Edouard broke into his Orange County home on Greystone Trail and beat him.

The three teens are also accused of stealing two TVs and a DVD player from Calderon.

The victim's brother, James Calderon, said Esteban moved in with him two years ago because he was extremely frail and was suffering from a heart condition.

Calderon said he left the house about 10:30 p.m. Wednesday. When he returned thirty minutes later, he found his brother lying on the floor, his face badly injured.

"Just take it and leave," said Calderon. "Why take advantage of someone who was obviously frail and ill? That's just pure evil."

James Calderon believes the teens used their fists to beat his brother.  He said had his brother survived, he would have needed major facial reconstructive surgery.

You can view pictures of Esteban Calderon at the hospital here. [Warning, content may be graphic.]