After Mirambeaux-Saker accused Jones of intentionally bleaching her laundry eight days before, the two students, who lived across the hall from each other, traded threats. Mirambeaux-Saker, from Roxbury, ratcheted up the tension last Friday by ripping the name tags off Jones's dorm room door, court papers say.

After noticing her door tag missing, Jones [a sophomore from Middletown, Conn.] confronted Mirambeaux-Saker last Friday night in the first floor hallway of Vanderslice Hall, which houses 423 sophomores and juniors. Mirambeaux-Saker then grabbed Jones by the collar of her sweatshirt and verbally threatened her before Jones choked and punched Mirambeaux-Saker, records say.

The two women fought until another student, Kevin Gordon, 19, a friend of Mirambeaux-Saker, intervened.

While fleeing to another dormitory, Mirambeaux-Saker left a large amount of blood around the floor and walls of Vanderslice, court papers say. Police found her bleeding on the floor of a Boston College bathroom with two incisions on the right side of her chest.