A 17-year-old Riverside Academy student was shot and killed near Shelton Avenue and Huntington Street Tuesday evening — marking the city’s second homicide in as many days, as well as the second Riverside teen to die by gunfire in the past two weeks.The New Haven Police Department (NHPD) posted about that shooting death on the social media site X.“NHPD is out with a shooting victim in the area of Shelton Avenue/Huntington Street,” read a post from 6:55 p.m.And at 7:34 p.m., the NHPD posted: ​“This is now a homicide investigation.”Police spokesperson Officer Christian Bruckhart told the Independent later on Tuesday evening that the victim was a 17-year-old male who was a student at Riverside Academy. That’s the city’s last remaining alternative high school for at-risk students. Tuesday’s homicide comes one day after 25-year-old New Havener Christopher Santana was shot and killed in a parking lot behind a George Street apartment complex in the West River neighborhood on Monday afternoon. It also comes less than two weeks after 16-year-old Uzziah Shell, who was also a Riverside student, was shot dead near Goffe and Hudson streets in the Dixwell neighborhood on Nov. 22.Tuesday’s shooting death marks the 13th homicide so far this year. According to the city’s most recently published CompStat crime data report, New Haven had seen 22 homicides by this point last year.