Langman, Peter F. <br/><br/>
Why kids kill :  inside the minds of school shooters / 
Peter Langman 
 - 1st ed. 
 - New York :  Palgrave Macmillan,  2009 
 - xii, 231 p. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. [211]-225) and index 
<br/><br/><label>ISBN: </label>9780230608023 0230608027 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Youth and violence--United States<br/>School violence--United States<br/>Violence in adolescence--United States<br/>Violence--United States<br/>School shootings--United States