BOSTON AP – A Massachusetts man accused of plotting to kill Americans was portrayed by federal prosecutors Thursday as a jihadist who is too dangerous to be released on bail, but the man’s lawyer said he was charged only after he refused to become an FBI informant against Muslims.

Tarek Mehanna, 27, of Sudbury, was arrested a year ago and charged with lying to the FBI. New, more serious charges were added last month, when Mehanna was accused of conspiring with two other men to shoot shoppers at U.S. malls, to kill two unnamed prominent U.S. politicians and to kill American soldiers in Iraq.