 SYCAMORE, Ill. (AP) &amp;mdash; Northern Illinois prosecutors say they&#039;ll try a Washington man for sexually assaulting a 14-year-old girl in the 1960s before they try him for the 1957 killing of a 7-year-old girl.&lt;/p&gt; &lt;p&gt;Prosecutors said Wednesday that 71-year-old Jack