** FILE ** In a photo from Tuesday, Dec. 10, 2013, an art installation is seen at the Heidelberg Project in Detroit. There have been at least eight fires since early May leading to questions about who might be targeting the installation and why they want to burn it down. (AP Photo/Carlos Osorio)

Photo by: Carlos Osorio

** FILE ** In a photo from Tuesday, Dec. 10, 2013, an art installation is seen at the Heidelberg Project in Detroit. There have been at least eight fires since early May leading to questions about who might be targeting the installation and why they want to burn it down. (AP Photo/Carlos Osorio)