I've updated the timeline to add recent comments - a work in progress. I hope I didn't miss anything. The timeline is entirely based on links provided at this website. Please feel free to make corrections/ updates.
childhood - spondylolisthesis diagnosis
November 2020 - started work with True Car, Inc.
?? November 2021 or January 2022 - moved into Surfbreak remote workers community? (moved out after 6 months)
Early 2022 - Surfbreak co-living community, Honolulu, active in daily sports
January 2022 - sciatica, beginner surfing lesson injury, one week in bed
February 2022 - slipped on piece of paper, right glute locked and right leg shut down for a week, leg couldn't support weight
March 2022 - nerve pain issues, experienced pain off and on
April or June 2022 - left Surfbreak community due to a lifelong back injury exacerbated by physical activity on the island, sought medical treatment on the East Coast
?? June-December 2022 - living in San Fransisco?
January 2023 - returned to Hawaii "briefly in early 2023", co-started a book club, several members left due to discomfort in book choices (Unabomber manifesto)
?? date 2023 - President of the Penn Club of Hawaii briefly met Mangione, Shangri La Museum of Islamic Art, Culture & Design in Honolulu
June 14 2023 - lost job due to TrueCar restructuring
July 4 2023 - experienced another injury, went to hospital
July 2023 - had spinal fusion surgery on East Coast
August 2023 - claimed surgery was successful 8 days post-surgery
?? date Japan - perhaps looking for work?
November-December 2023 - Hawaii, visiting Maui, Big Island, Oahu
December 2023 - returned to Baltimore to see his family.
February 2024 - Mangione said the surgery came "after 1.5 years of failed conservative treatment." (Jan 2022-July 2023)
Early 2024 - Mangione traveled to Asia for several months
April 2024 - Thailand
May 25 2024 - last reddit post where he endorsed back surgery
June 10 2024 - last twitter post, anniversary of Unabomber death by suicide; final X.com post shared: impact of smart phones and social media on mental health and brain plasticity
?? 2024 - San Francisco?
July 2024 - friend wrote that he hadn’t heard from Mangione in months regarding wedding commitment
July 2024 - began forming murder plan, stopped talking to friends and family
September-October 2024 - Honolulu
September 2024 - Mangione removed phone number from WhatsApp group for Penn alumni in Hawaii
October 2024 - friend asks Mangione on twitter whether he is okay
November 18 2024 - reported missing by mother in San Francisco.
December 4 2024 - shoots a stranger in the back
sfstandard.com
