PLEASE HELP!! My BEST is getting divorced, and wants me to write a statement for court, good or bad idea?

[2010]

Hi everyone.

My best friend of 22 years is getting divorced soon.
She has 3 young children under the age of 10.
Her husband was abusive (physically, emotionally & verbally), choked her in front of her children, and was just awful.
She left him and now they have to go to court and fight for custody, she has been a stay at home Mom since her 1st child was born.
Her husband was also verbally abusive to me, finding me online on facebook, myspace and twitter and harassing me through email.
She wants me to write a written statement saying that he verbally abused me and to give her my evidence that I have that he DID verbally abuse me.
I am literally scared to death of this man, I do NOT want him coming after me when the court hearing is over...should I write the statement or not??
She is my best friend and I love her so much, but I don't want any drama with this man...


Please help me.

Serious answers only.

Thanks for reading!