A special prosecutor has declined to charge three Milwaukee police officers in whose custody a suspect died in 2011, saying there wasn't enough evidence to support a case.
Derek Williams, 22, died in July 2011 after gasping for air in the back of a squad car. An inquest jury last month recommended a misdemeanor charge against three officers of failure to render aid.
Special prosecutor John Franke released his final report Friday. It says the inquest jury found probable cause that an offense was committed, but there wasn't enough evidence for a prosecutor to prove guilt to the stricter standard of beyond reasonable doubt.
The three officers could still face federal criminal charges. The U.S. Attorney's office in Milwaukee has not ruled out charging them.