>> right away i knew he was deaf and he was trying to let the security guard know he was deaf. >> but the security guard who now has alejandro in a head lock still doesn't appear to notice. alejandro's brother, pablo, desperately tries to get the guard's thaenattention, but it' difficult because pablo, too, is deaf. >> he's running around and yelling and it's unfortunate that deaf people don't articulate their voices as well as hearing people. >> so what you hear is a lot of g guttural and primieval screams. you could feel the pain in their voices even though they can't articulate what they're saying. you can hear what they're feeling, there is a panic there. >> pablo is unable to help his brother. >> another security guard that was lulling him out to intervene into the situation. >> you're choking him. >> he's turning purple.