PORTLAND — Murder suspect Anthony Pratt has waived extradition, but is not expected to be transferred from New York to Maine for at least two weeks, Portland officials said.

Pratt, of Far Rockaway, N.Y., was arrested Tuesday and charged with murdering Margarita Fisenko Scott, of Westbrook, whose body was located on Jan. 17 in the back of her SUV, which was found in the Motel 6 parking lot on Riverside Street.

Portland Police said this week that Scott, 29, was shot in November. They said Pratt, 19, and Scott had been dating and both sometimes stayed at an apartment at 266 West Concord St., where they believe the shooting took place.

Police have said they are still working on a motive.

Portland officials said Thursday that now that Pratt has waived an extradition hearing, he will appear in Queens County Criminal Court on April 12 to arrange a date for his transport to Maine. He’s not expected to be brought to Maine before April 19, officials said.

Police are either withholding or don’t know a number of details in the case, including precisely when in November Scott was killed and how long the SUV was in the parking lot.

They said they recovered the gun used in the shooting, but would only say it was not found at 266 West Concord St. The gun had been stolen in a central Maine burglary, they said, and sold on the street in Maine, but they won’t say whether Pratt was the buyer.

Pratt traveled frequently from New York to Maine, police said, but they don’t know his connection to the state.

Scott, they said, had separated from her husband, but the couple had remained in contact. Cary Scott was cooperative in the investigation of his wife’s disappearance and killing, police said.