A serial burglar who wakes and often assaults his victims before making off with electronics and cash robbed a 21-year-old woman on Belmont Avenue Sunday. Police think the same man is responsible for an august robbery on Goodwin, a rape on Penrose last October and four other similar break-ins.

Descriptions of the robber have been vague and varied. Victims have described their attacker as black or Hispanic, between 5-foot-6 and 5-foot-9, between 170 and 210, and between 20 and 25 years old. He typically strikes between 2 and 5 a.m. and enters through unlocked doors and windows. He wakes victims, which have included men and women, by contact or a loud noise. And he steals cash and small electronics like laptops and iPods.

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In the most recent robbery, the woman told police she was asleep on the couch when the man attacked, and she fought him off.