The helicopter accident killed five people, reportedly including his 13-year-old daughter Giana Maria Bryant, who recently became a viral sensation on the internet from a video of her father giving her basketball pointers.
Imbrenda said he didn't know where the helicopter came from or where it was headed.
Federal Aviation Administration spokesman Allen Kenitzer said the downed chopper was a Sikorsky S-76.
Former Los Angeles Lakers superstar Kobe Bryant earned more than $680 million during 20 years in the National Basketball Association before launching a successful business career after retirement.
"Continuing to move the game forward @KingJames". "Much respect my brother".
Brad Pitt & Jennifer Aniston Have Sweet Reunion At The SAG Awards
Grey's Anatomy actress Jessica Capshaw, 43, said: "You are the definition of glamour, grace, beauty and adorableness. Somewhere between these two photos, my peers gave me a gift I will cherish and a night I will never forget.
The NBA lost one of the greatest to ever play the game today.
Olympic gold medalist Simone Biles shared an image of herself with Bryant.
Wade and Bryant had battled each other since Wade's entry into the National Basketball Association during the 2003-04 season.
China locks down cities to curb virus
Experts say the United Kingdom is well equipped to deal with the virus but that authorities should take the risk seriously. The Forbidden City, the palace complex in Beijing that is now a museum, announced it will close indefinitely on Saturday.
Former Bulls star Scottie Pippen tweeted: "I'm stunned. Just an incredibly sad and tragic day".
People from across the scene have already taken to Twitter to express their sadness upon hearing the news of Bryant's passing.
President Donald Trump reacted to the reports soon after they began to surface, tweeting: "That is awful news!"
Australian Open: Serena Williams knocked out in third round
The Spaniard grimaced as he saw his miscued shot strike the youngster and quickly jogged to her side to check she was okay. In the second round, Novak showed more stable tennis and defeated Tatsuma Ito in three games (6-1, 6-4, 6-2).