Veteran Deputy Lake County Prosecutor John Burke has died. Burke, born in Gary, was a retired Deputy Prosecutor with the Lake County Prosecutor's Office, where he served in the Career Criminal Unit for 37 years. Among the high-profile cases Burke prosecuted was that of convicted serial killer Eugene Britt. Burke won an arson-murder conviction in the trial of Steven Allen for a 2005 fire at Tanglewood Apartments in Hammond that killed Allen's wife, infant daughter and a neighbor. Burke was also involved in eight death penalty cases. Burke, who retired in 2011, passed away at his home in Valparaiso Monday. Burke was 66.