Michael D'Arco is the boyfriend of Stephanie Miller, the woman who police say was gunned down inside a Delaware County, Pennsylvania, Wawa by her ex-husband. In an exclusive interview, D'Arco said he and his girlfriend lived in fear that her ex-husband would kill them. He also said he had bought an engagement ring before her death. _____ SUBSCRIBE TO NBC10: VISIT the NBC10 channel for the latest news and exclusive reports: http://on.nbc10.com/jhXM8hP FOLLOW NBC10 PHILADELPHIA Instagram: http://on.nbc10.com/ZvgGgo2 Facebook: http://on.nbc10.com/gkeMKi3 Twitter: http://on.nbc10.com/pYka4fl VISIT OUR SITE: https://www.nbc10.com/ DOWNLOAD OUR FREE APPS: http://on.nbc10.com/sEMWgkx ABOUT NBC10 PHILADELPHIA NBC10 is the Philadelphia region's most trusted source for breaking news, exclusive local stories, in-depth investigations and most accurate weather.