Francisco Sanchez Porras was riding his bicycle northbound on 61st Street when he failed to stop for a red light at Imperial Avenue at about 3 p.m. Wednesday, according to the county Medical Examiner's Office. Two eastbound vehicles struck the Bonita High Vista School student, with the second hitting him after he'd been thrown onto the roadway, police said. He died at the scene. On Friday, Porras' family shared pictures and memories of a teenager who had a positive attitude, a zest for life and loved to make others laugh.His sister said Porras had recently talked to a Marine recruiter at school to sign on with them next year."We are devastated," Xenia Sanchez told 10News. "It's just not clicking yet. He was a kid who loved life. He loved riding his bike and always looked for the positive in any situation."Sanchez said Porras' racing bike was his pride and joy. He paid for and built it himself."It's called a 'fixie,'" said Sanchez. "He put it together and we just want to warn people to check the safety of these build-it-yourself type bikes. It's a racing bike built for speed, but his brakes were wasted, according to what the police told us We hope people will learn from this and just be careful."Porras' cousin, Sophia Garza said he was a class clown and the family jokester."We were always very close," she told 10News. "Everyone who met him loved him so much. He once joked that when he died he wanted people to be happy, eat and drink and celebrate and don't be sad. We just loved him and will miss him so much."Porras was also a member of the varsity swim team at Bonita Vista High School. Classmate and fellow swim team member Christian Preston Rubio said he was the last person to spend time with Porras."We hang out every day after school and he just had left and said he felt like going for a bike ride after school," said Rubio. "He was a great guy He had so much enthusiasm about life. There was never a gray day. When I heard about the accident, I just ran down there and stood down there in the rain watching for hours. I just feel bad for his family."Funeral services will be held for Porras in Tijuana. If you would like to help the family with burial expenses, visit Wells Fargo and reference account #2629866431.