New York Times: John Glenn, American Hero of the Space Age, Dies at 95.

“John Glenn, a freckle-faced son of Ohio who was hailed as a national hero and a symbol of the space age as the first American to orbit Earth, then became a national political figure for 24 years in the Senate, died on Thursday in Columbus, Ohio. He was 95.
[…]
Finally, 36 years after his Mercury flight, in the last months of his final Senate term, he got his wish for a return to orbit. […] At 77, he became the oldest person to go into space.”

NASA has a lot of material and further links on their John Glenn page.

Deutsche Welle: Former US astronaut and senator John Glenn dead aged 95. “John Glenn, the first US astronaut to orbit Earth and a former Ohio senator, has died at 95. Hailed as “the ultimate hometown hero,” he served as a senator for 24 years and later became the oldest man in space.”

Die Zeit: Astronautenlegende John Glenn – ein Pfadfinder im Weltraum. “Was für ein Leben: John Glenn umkreiste vor 50 Jahren nicht nur als erster US-Amerikaner die Erde. Er wollte Präsident werden und flog mit 77 ein zweites Mal ins All.” Von Hellmuth Vensky, 20. Februar 2012.