Natasha L. Trongeau, 28, of Haverhill, died unexpectedly on Wednesday, Feb. 28 in Haverhill. She was born in Haverhill on Dec. 4, 1989, the daughter of Roger and Theresa (Gaouette) Trongeau of Haverhill. Educated in the Haverhill school system, Trongeau graduated from Haverhill High School and