Kelsi German.Photo: Haley Renee Warford

kelsi german

For as long as she could remember, Kelsi German wanted to be a news reporter. In fact, during her freshman year at Ball State University in Muncie, Ind., German took nothing but journalism classes.

“My entire life, that’s all I wanted to do,” German explains.

Listen below to the episode ofour daily podcast PEOPLE Every Dayfor more details on the Delphi Murders.

On Monday, April 12,the tragic killingswill be examined in-depth onPeople Magazine Investigates: The Delphi Killer, at 10 ET/9 CT on Investigation Discovery and streaming on discovery+. (An exclusive clip is shown below.)

After losing her sister and best friend, Kelsi German shifted her academic focus to psychology and criminal justice in order to help people like herself — the loved ones left behind after the murders.

“I had this switch that went off in my head and I found my passion with helping people in the true crime community, especially,” German, 21, tells PEOPLE. “And then I found a career path that would get me to the spot I wanted to be in, where I could help these people for the rest of my life. And now, that’s what I’m planning on doing.”

liberty german and abigail williams

The recently-engaged German is now at Purdue University, studying forensic science — but she isn’t planning on using her education to bring her sister’s killer to justice.

“If I learn something in my classes, it might be something new that the detectives haven’t thought about,” German reasons. “I use it to my advantage, and I’ll be like, ‘Hey, what about this?’ or ‘Have you guys tried that?’ It’s a nice way for me to be able to help them in a different way and also meet all of these people going into the forensic science field who are so interested in these kinds of cases that are going unsolved right now.”

German says she’s confident someone will eventually come forward with key information police need to make an arrest, and dreams of the day detectives call her with the news.

“I can’t wait for that day,” German says. “I pray every day that today is the day. I think it’s going to be such a bittersweet moment, because it’s not like the whole chapter is going to be closed — but one page of that will be done and we’ll have answers and we’ll have a face that we can put to it. It’s going to be amazing. I can’t wait to get justice for both of the girls and I pray it comes sooner rather than later.”

In fact, she hopes that that call comes this year — what would have been the girls' senior year of high school.

“We’ve waited so long for answers,” German says, “so it would be nice to have closure and the girls can have their day and we can be done.”

On Monday,the Indiana State Police announcedthat thanks to an anonymous donation of $100,000, the reward for information leading to a conviction in the case has increased to $325,000.

For more on this story, watchThe Delphi KilleronPeople Magazine Investigates, on Monday, April 12, at 10 ET/9 CT on Investigation Discovery and streaming on discovery+.

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source: people.com