In the first article, author reported that Haley was a junior student at Hawken's School. She plagiarized twice on her academic works so that she got expelled from the school as the result. She habitually used other's works, copying and pasting from internet. Even though she had known what to write about, she just plagiarized, using websites which offer many essays to download.
In the second article, Marita was a freshman at UCLA. On her first writing assignment, she used some words from the encyclopedia because she wanted to do well on it. Even though, she listed citation on the bottom of the last page of her paper, she quoted only some of sentences that she copied from the encylopedia. Therefore, the school consider her action as a plagiarism.
Compared to these articles, Haley plagiarized most of her works from the websites, but Marita did from the encyclopedia and left the citation on her papers. Therefore, these two cases are different, but I think that they should be punished the same way. Marita was her first plagiarism and missed only few of quotation. It is proper to get Marita less harsh punishment than Haley get.