Killer whales have been attacking sailing vessels, sinking three boats this year and damaging dozens of others over the past couple of years.

SUBSCRIBE to ABC News on YouTube: https://bit.ly/2vZb6yP
Latest updates: http://abcnews.go.com/
Watch FULL EPISODES on Hulu: http://abcn.ws/3bzvQQn

#news #orca #boating #abcnews #marinelife