“Bernie Baby,” the four-month-old baby dressed up to resemble Bernie Sanders at a political rally, died of Sudden Infant Death Syndrome (SIDS) on February 25.

Oliver Jack Carter Lomas-Davis was Bernie Baby. His aunt confirmed his passing in an interview with the Associated Press.

Bernie Baby quickly became an internet sensation when photos of him wearing a messy white wig and black rimmed glasses were shared online. He met Bernie Sanders at a rally in Los Angeles.

Babies for Bernie 2016 Oliver Jack Carter Lomas

A photo posted by Susan Lomas (@sflomas) on Feb 14, 2016 at 4:32pm PST

Michael Briggs, a spokesman for Bernie Sanders, learned of Bernie Baby’s passing and said the campaign planned to issue a statement.

“It’s very sad,” Briggs added.

#berniebaby http://m.huffpost.com/us/entry/bernie-baby-dead_us_56d76466e4b0ffe6f8e818a7?ir=Healthy+Living&section=us_healthy-living&utm_hp_ref=health

A photo posted by Susan Lomas (@sflomas) on Mar 3, 2016 at 7:58am PST

Bernie Baby’s funeral is planned for Tuesday at 12:30 p.m. at Forest Lawn Hollywood Hills Church of the Hills.

Everyone who met or viewed pictures of Bernie Baby no doubt experienced joy at the sight of the baby boy. His family and others who knew him are surely experiencing unspeakable grief in light of his untimely passing.