Boston College sent out this alert this morning:

Brookline Police add:

Around 11:00PM yesterday NYPD officers from the 68th precinct confirmed that Stephen had returned to his home address in New York, in good health. Family members in New York arrived on scene to stay with him until his other family members returned from Boston. At this time that is all we have. As a Department we wish to thank everyone who helped in any way getting the message out these past few days, and we are happy he is safe.