Park Drive and Kilmarnock Street is just an ordinary residential street corner. It's across from the park, but the report doesn't say that the victims were in the park.

Also, what does Mission Hill have to do with this?

There are some residences in that area for Harvard Medical School and School of Public Health.

The cops that patrol the medical area campuses tend to hang out over on Louis Pasteur, close to where the incident occured. They might have been first responders.

they sent this e-mail to students:

This information was released by Emmanuel College’s Department of Public Safety.

“To All Members of the Emmanuel College Community:
At approximately 12 midnight this morning (Tuesday 9/9/08), two female Emmanuel students along with a male Colleges of the Fenway student were involved in very serious incident in the vicinity of Park Drive and Kilmarnock St. All three students were assaulted and robbed by three unknown individuals, two male and one female, dressed in dark clothing.

The Boston Police Department was immediately notified of the incident and all three students were transported to Beth Israel Deaconess Medical Center by Boston EMS. The students were treated for injuries, one of which was a significant injury to the head, and subsequently released. The Boston Police Department is actively searching for the assailants.

While violent crime in our neighborhood is not common a common occurrence, all members of the Emmanuel community should be vigilant about their personal safety, particularly when traveling on foot at night. Always be aware of your surroundings, avoid areas that are not well lighted and do not travel alone at night.”

If at any time you observe any type of suspicious activity or have been the victim of a violent crime, regardless of the location of the incident, please notify the Harvard University Police Department immediately at 617-432-1212.