Quinn Cook just revealed the atmosphere on the Lakers team plane after learning of Kobe Bryant's death last month ... and it's heartbreaking.
The Lakers guard says just minutes after Kobe, his daughter, Gianna, and 7 others were tragically killed in a helicopter crash on Jan. 26 ... he was shaken awake by head coach Frank Vogel on the team's ride back from Philadelphia.
"He's like, 'Quinn, sorry to tell you, but Kobe and his daughter have been in a helicopter crash,'" Cook said on Danny Green's YouTube show, "Inside the Green Room with Danny Green,"this week."'We don't know any details.'"
Quinn says Vogel had that talk with everybody on the team plane ... and he says once the news really set in with the players -- the whole squad was devastated.
"I look in front of me and I just see LeBron and AD and Randy and AB, Dwight -- everybody was just crushed."