Accident
noun
The actions he took as well as the particular circumstance is what caused this accident. It all aligned too perfectly.
じこ
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.
ひき逃げ事故のせいで、買ったばかりの牛肉が挽き肉になった。
Due to the hit-and-run accident, the beef he bought became ground beef.