"Nicki Cruiz's testimony "Run Baby Run" otherwise known as "the Cross and the Swicthblade"? "
Oh, these are actually 2 different books and you should read them both. Run Baby Run is Nicki's fabulous testimony. Moreover, his life has proven to be a testimony because now he is an old man but still fervently living for Christ. He was not a weed that sprouted up quickly and withered. He is one of the rare ones that fell on good soil.
The other book is David Wilkerson's testimony and he is in his 80's now I think and he is also still standing firm for God. He has a church called Times Square Church and you can listen to his sermons on-line. I love to hear him preach!
As for Run Baby Run, some of it was a little violent for my taste, but it was not graphically so and based on the testimony, it could not be avoided. He lived a violent life until he found Christ. Both of these books should be in every Christian library.