/*Michele Cossey*/ also received five years' probation Tuesday after pleading guilty to one count of child endangerment in September. The 47-year-old Cossey admitted that she gave her son access to a rifle with a laser scope and gunpowder, which investigators said he was using to build grenades.
Prosecutors dropped weapons charges and related offenses.
Fifteen-year-old /*Dillon Cossey*/ is in juvenile custody after admitting last year that he planned to attack /*Plymouth Whitemarsh High School*/ in Montgomery County.
Information from: The Times Herald, http://www.timesherald.com/