According to police, a Chicago public school teacher was shot and killed while working at her second job in a real estate office this week.

The Associated Press reports that 58-year-old Betty Howard was working in the office in the South Side neighborhood of Chatham on Thursday when a bullet traveled through a wall, striking her in the head. Authorities believe the gunfire stemmed from a gang conflict. 

In addition to teaching at Gwendolyn Brooks College Prep and working for the real estate company, Howard also taught special needs children at their homes. Gwendolyn Brooks Principal D'Andre Weaver told the Associated Press Howard would do "whatever it took" to help her students. 

Andrew Holmes, a community activist, told the Associated Press that there's a $2,000 reward for information resulting in the arrest of Howard's murderer. "You know who was shooting at you," Holmes said of the intended targets. "Whether you were shot today, you know who was shooting at you. What you need to do is pick up that phone [and call police]."

[via The Associated Press]

RELATED: 10 Reasons Chicago's Murder Rate May Rise in 2013 
RELATED: R.I.P.: Remembering the Lives of Every Teenager Killed in Chicago This Summer 

Send tips, photos and news developments to cityguidetips@complex.com.