Jarrett grew up in Lake City. He is a 1998 graduate of Buffalo Island Central, where he was recognized as a Distinguished Governors Scholar. He graduated in 2002 with a B.A. from ASU in Agricultural Business with a Finance Emphasis. After graduating from ASU he earned Juris Doctor in 2006 from the Bowen School of Law in Little Rock. Jarrett joined the firm in 2006. He attends the National Association of Criminal Defense Lawyers DWI Defense training regularly, and has successfully defended hundreds of DWI/DUI cases in Arkansas. Jarrett lives in Harrisburg with his wife Ashley, who is a licensed social worker, and their daughter Owynn. The Cobb family is very involved with St. Jude Children's Hospital, hosting an annual fundraiser and participating in various other awareness events.