David Yates he post on craiglist to install security system, he come out and give the estimate and required 50% advance to start work but after securing payment he never answer phone calls or never start your work, his address is Extreme Audio and Video,140 W bomford st,richwood OH 43344, and his phone number is 740-361-3347, email he used are : david_yates@yahoo.com and david_yates@icloud.com...please stay away from this guy he is a big scammer and conman. u will never get your money back or get your work done ...