A Purdue University student was arrested on a murder charge Wednesday and accused of killing his roommate overnight in a residence hall on the campus in West Lafayette

A Purdue University student was arrested on a murder charge Wednesday and accused of killing his roommate overnight in a residence hall on the campus in West Lafayette

Varun Manish Chheda, 20, a senior from Indianapolis, who was studying data science.

Varun Manish Chheda, 20, a senior from Indianapolis, who was studying data science.

Ji Min “Jimmy” Sha, a junior cybersecurity major and international student from Korea

Ji Min “Jimmy” Sha, a junior cybersecurity major and international student from Korea

Chheda died of "multiple sharp force traumatic injuries," and the manner of death was a homicide, according to preliminary autopsy results.

Chheda died of "multiple sharp force traumatic injuries," and the manner of death was a homicide, according to preliminary autopsy results.

Chheda died of "multiple sharp force traumatic injuries," and the manner of death was a homicide, according to preliminary autopsy results.

Chheda died of "multiple sharp force traumatic injuries," and the manner of death was a homicide, according to preliminary autopsy results.

Arunabh Sinha went to school with Chheda for 12 years and said their families were also friends.

Arunabh Sinha went to school with Chheda for 12 years and said their families were also friends.

He remembered Chheda as “a really smart guy, always top of his class, top of the chess club, science bowl team. He was really humble about it.”

He remembered Chheda as “a really smart guy, always top of his class, top of the chess club, science bowl team. He was really humble about it.”

Chheda won first place at a state Spanish competition in 2015 and 2016

Chheda won first place at a state Spanish competition in 2015 and 2016

As he is taken inside a building, a reporter asks Sha, "Can you tell us why you did it?"

As he is taken inside a building, a reporter asks Sha, "Can you tell us why you did it?"

Sha pauses a few seconds and then seems to say, "I love my family." He then repeats the comment.

Sha pauses a few seconds and then seems to say, "I love my family." He then repeats the comment.