When Sergeant Scott passed away.
When Sergeant Scott died of lung cancer and Rossi immediately flew to Los Angeles. Rossi paid for a military funeral with full honors for Scott’s son Thomas, Thomas’ wife, and their son.
Many of the members of Scott and Rossi’s platoon from Vietnam showed up to pay their respects. At the end of the episode, we saw a flashback of Scott giving Rossi a Purple Heart award. Rossi solemnly placed it on Scott’s casket, along with an aged photo taken of the platoon in Vietnam.
Season 10, Episode 12 “Anonymous”