Attorneys for the man accused of killing his ex-girlfriend and leaving her body at Dubuque Arboretum & Botanical Gardens have outlined several defenses, including insanity. 21 year old Richard Forsythe of Galena, is charged in Iowa District Court of Dubuque with first-degree murder. The charge carries a life sentence without parole upon conviction, and Forsythe has pleaded not guilty. Police said Forsythe killed 20 year old Jennifer Lopez of East Dubuque and stabbing her at least 15 times. Her body was found in the arboretum on February 1st. A report says the defense intends to show evidence for several affirmative defenses for Forsythe — intoxication, insanity and/or diminished responsibility and methamphetamine-induced psychosis.