A Texas high school student has used his musical talent to honor his neighbor, a U.S. Marine who died unexpectedly. The teen played the national anthem and patriotic hymns on his French horn outside his home in Cypress, Harris County, every night for two weeks. Ethan Martula, 15, from the Cypress Ranch High School marching band, wanted to pay tribute to Sgt. Marty Gonzalez, a U.S. Marine survived by his wife, Tawnee, and four children. Gonzalez, 40, passed away on Nov. 28 after collapsing in his driveway, a result of complications from injuries sustained in Iraq in 2004. “We knew something really bad had happened because the ambulance didn’t leave with a signal or siren,” Ethan’s mother, Monika Martula, told Houston Chronicle. “[W]e learned later on our neighborhood Facebook that it was Marty. It was devastating. He was so young.” In the wake of Gonzalez’s passing, neighbors adorned the street with American and …