Oh y do u suspect claire and wut did they say
SILENCE!I KILL U!
from a 909 phone number, Saturday, January 15, 7:47 PM EST

Why do you need details ? Lets juss say i gtg. Bye
from a 909 phone number, Saturday, January 15, 7:48 PM EST

This sounds like the plot of a detective movie. I can just picture 909 flipping down her sunglasses really fast and speeding away in her unmarked car immediately after sending these texts.