The Dallas Morning News says

When Mr. Perry learned the fire was arson, he said, his emotions “went from heartache to pretty damn mad.” This was his family’s home, he said, and a place where children have “slid down banisters and chased pets in the yard” for more than a century.
Mr. Perry didn’t say whether he was disappointed with the Department of Public Safety, whose troopers are responsible for safeguarding the mansion.

The mansion wasn’t just home to Perry, or W before him.  Read more