los-nios-de-la-calle: Crypts of street children occupy a mausoleum in a cemetery in Ciudad Vieja, near Antigua. Pilar Lopez of Medicos Sin Fronteras said she believes there to be about 3,000 children and young adults living on the streets of Guatemala City. Many are murdered, killed in accidents or die from health problems. Barring death at a young age, most have a life expectancy of about 30 years, Lopez said.