Leads and witnesses are proving scarce in the hit-and-run death Wednesday night of a Poughkeepsie High School senior, and City of Poughkeepsie police said they fear the driver could get away with the crime if the public doesn't step up to help.

City resident Shequila Brown, 18, of North Clinton Street was run down in the city's eastbound arterial (Church Street), near St. Mary's Church, about 8:40 p.m. Wednesday and was later declared dead at Saint Francis Hospital in the Town of Poughkeepsie.

"Without the assistance of the public, the person driving the vehicle that struck Brown and left the scene will not be held responsible," city police Det. Sgt. Matt Clark said in a statement Friday.

Citing a "limited number of witnesses," Clark said police are "unable to give a make or color of the vehicle involved in this incident.

"The person responsible must be talking about what happened or getting their vehicle repaired," Clark said.

City of Poughkeepsie police are asking anyone with information on the accident to call them. They can be reached at 845-451-7577. All calls will be kept confidential.

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An autopsy by Dutchess County Medical Examiner Dr. Kari Reiber determined Brown died of "multiple blunt impact trauma."

Brown was interested in studying criminal law at Marist College, Poughkeepsie High Principal Edgar Glascott said Thursday. She participated in the school's college-prep program in conjunction with Marist and was a member of the school's "Sister 2 Sister" personal development program and its Gay-Straight Alliance, Glascott said.

"She was one of those kids that everybody knew," Glascott said. "Just a great, great kid."