Altemio C. Sanchez, also known as the Bike Path Rapist, was a Puerto Rican serial killer who is known to have raped and murdered at least three women, and raped at least 9 to 15 girls and women in and around Buffalo, New York, during a 31-year span from 1975, though perhaps earlier, to 2006. He was apprehended in 2007 through DNA evidence and sentenced to 75 years-to-life, serving 16 years before dying from apparent suicide in 2023.

San Sebastián is a town and municipality of Puerto Rico located in the northwestern region of the island, south of Isabela, Quebradillas and Camuy; north of Las Marías; east of Moca and Añasco; and west of Lares. San Sebastián is spread over twenty-four barrios and San Sebastián Pueblo. It is a principal city of the Aguadilla-Isabela-San Sebastián Metropolitan Statistical Area.