LEAGUE CITY, Texas - Police have arrested a 62-year-old man in connection with the hit-and-run death of a 19-year-old non-verbal teen with autism, who was struck and killed after leaving his home earlier this week.

The backstory:

Investigators said Landon Graham, described by family as full of joy, left his house unnoticed on the night of Sept. 16. His family says leaving the home on his own is not something that he would regularly do. He was walking in the 3300 block of West Main Street when he was struck by a vehicle that fled the scene. A second driver hit Graham moments later but stayed and called 911, according to League City police.

Graham was taken to a local hospital, where he died the following day.

Detectives later identified the first vehicle as a late-model gray Toyota Tu

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