The San Mateo County coroner has identified the teenager as the Menlo Park resident killed by a train on Oct. 14.
Preliminary information indicates it may have been a suicide, but the investigation is ongoing, Deputy Coroner Roger Fielding said.
Train #258 struck the 16-year-old north of the Encinal Avenue crossing in Menlo Park around 4:22 p.m. on Oct. 14, according to Caltrain. Loaded with commuters during the rush hour, trains resumed running along both tracks around 6:30 p.m., Caltrain spokesperson Jayme Ackemann said.
All trains were held in both directions while transit police responded to the scene.
Caltrain said this was the agency's 13th fatality this year. Last year, 12 people died on the tracks.
The memorial service starts at 2 p.m. at the church located at 950 Santa Cruz Ave.
The following resources are available for those in crisis: Adolescent Counseling Services, (650) 424-0852; KARA, (650) 321-5272; Family and Children's Service, (650) 326-6576; Center for Living with Dying, (408) 243-0222; Suicide and Crisis Hotline, (650) 494-8420; Teen Clinic, (650) 694-0600; Alcohol and Drug Hotline, (650) 573-3950; Parental Stress Hotline, (408) 279-8228; Teen Health Resource Line, (888) 711-8336; Santa Clara County Suicide & Crisis Hotline, (855) 278-4204.