About three hours before Jeremy Patterson shot and killed his ex-girlfriend and her son on a Sandy street, police in Draper briefly investigated a tip about Patterson. At about 12:30 p.m. June 6, an anonymous tipster told a Draper officer she had recently received a message from Patterson â who lived in Draper â saying he had broken up with his girlfriend â and that he wanted to kill the girlfriend and then himself. The police report was provided Wednesday in response to a public records request... <iframe src="http://www.sltrib.com/csp/mediapool/sites/sltrib/pages/garss.csp" height="1" width="1" > </frame>