TWO BOYS ON A COLLISION COURSE... WHY DID AN 8th GRADER SHOOT HIS CLASSMATE?

Juju Chang's Report on One of the Most Controversial Bullying Cases of Our Time Airs on "20/20," Friday, October 7 on ABC

Plus: Chris Cuomo Investigation into a Controversial Birth Control Pill

In February 2008, 14-year old Brandon McInerney and 15-year old Lawrence King sat a row apart in 8th grade English. Just days before Valentine's Day, Brandon brought a gun to middle school and shot and killed Larry in front of his classmates. The unanswered question remains, why? Could a school yard crush � one boy's same-sex attraction � be a motive for murder? And, when one student is allowed to dress in women's attire and openly professes his attraction to another boy, does the line between exactly who bullied whom suddenly become blurred? Will a jury convict a boy who was barely 14 of first degree murder and a hate crime, and if not, are they blaming the victim for causing his own death?

"20/20" goes inside one of the most controversial bullying cases of our time. Juju Chang's report, which includes interviews with the teacher who gave Larry a dress, Brandon's mother and brother and six of the jurors, among many others, airs on "20/20" on FRIDAY, OCTOBER 7 (10:00-11:00 p.m., ET) on the ABC Television Network.

ABCNews.com links: Slideshow: Despite appearances, Larry King and Brandon McInerney had much in common: http://abcnews.go.com/US/slideshow/eighth-grade-shooting-14608866

Blog: How Do You Explain an Eighth-Grade Murder? http://abcnews.go.com/blogs/headlines/2011/09/how-do-you-explain-an-eighth-grade-murder/

"20/20" viewers can submit their own "I Am Different" videos: http://abcnews.go.com/2020/mailform?id=14556171

#IAmDifferent Sergio Garcia was crowned homecoming queen at his high school: http://abcnews.go.com/2020/video/lawrence-king-sergio-garcia-school-murder-gay-teen-crime-14599018

Residual Kid: Young Band Brings Powerful Message : http://abcnews.go.com/Entertainment/residual-kid-young-band-brings-powerful-message/story?id=14604415

Plus: One of biggest selling birth control pills on the market is under attack by critics, and the subject of thousands of lawsuits. The problem: while all birth control pills bring a slight chance of dangerous blood clots in young women, Yaz may have a much higher risk. Chris Cuomo reports.

"20/20" is anchored by Elizabeth Vargas and Chris Cuomo. David Sloan is executive producer.