Victim
noun
You learned 被害 means "damage," and this is about someone who suffers damage, so this means victim.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. Remembering the word 被害 might help you out too.
これが被害者のベッドの写真です。
Here is a picture of the victim's bed.
被害者は、とても口数の少ない人でした。
The victim was a very quiet person.
地震の被害者の多くは家を失ってしまったので、今は体育館で生活しているんです。
Many of the earthquake victims lost their homes, so they are currently living in gymnasiums.