Why do wrongful convictions occur in Capital cases? 
A comprehensive explanation is warranted to illustrate at least three reasons why these erroneous convictions occur. 

One comprehensive and concise paragraph will answer the question properly
One paragraph and three subsections will reasonably  respond to the multi-dimensional question 
Grammar and diction are important
Post  two additional required  comments to  two other students, it will promote a holistic learning approach to the topic discussed
The class text is a good source to use to support your opinions