The man accused of raping a 28-year-old woman in the vestibule of her Sunset Park building after following her from a Dunkin Donuts early Saturday was supposed to be married yesterday. Instead, William Giraldo, 24, is being held on $100,000 and having his reputation besmirched. Giraldo, a livery cab driver, turned himself over to police after relatives spotted him in surveillance video released by the NYPD earlier this week; the video shows him on line in a Dunkin' Donuts, and investigators allege that he followed the woman back to her apartment building from the establishment and raped her. He insists he's innocent.

The rape victim picked Giraldo out of a lineup, but three other women who fended off a serial rapist in Sunset Park and Park Slope did NOT pick him out of a lineup. Giraldo's attorney insists his client has "ironclad" alibis for all the attacks, and that he was driving a fare to JFK airport at the time of the Saturday attack. "My concern is, frankly, that there's still a rapist out there," Heriberto Cabrera told the Daily News.

Giraldo and his fiancee were supposed to be married in Florida yesterday. Answering the door at Giraldo's home yesterday, she stood by her man, telling a Post reporter, "What can I say? He's the best! I'm still marrying him!"