How do I phrase a search?

Okay this may come off like I am a nut job, but I am trying to find out if there was a murder in or around the park behind my apartment complex anytime in the last 50 years, but any search terms I use come back with homes for sale in the area. The area I am looking for is north shooks run park in colorado springs 80903 or around north el paso an dale streets. Here is the part where i sound like a nut job when ever I walk across the bridge there i get a feeling like something happened there. can someone please help me with my search