Osteoporosis prevention symptoms and conditions

I think Fosamax KILLED MY MOTHER. My mon was previously healthy with no known medical problems. No hypertension, no high cholesterol, no diabetes...nothing. She was taking Fosamax for osteoporosis prevention. She developed an acute liver failure. There was no viral, bacterial, or cancer linked to this sudden onset of liver failure. She received a liver biopsy and within one week was dead from bleeding from the biopsy site. I have recently found some journal articles linking Fosamax to acute liver failure. MY HEART IS BROKEN. Do not take this drug without doing in depth research on its side effects and discontinue it immediately if any side effects occur. God Bless.