A 22-year-old Mayo man has been jailed for life for the murder of his mother at their home almost three years ago.
Celyn Eadon admitted killing but denied murdering Noreen Kelly on 9 March 2011 and claimed a mental disorder through drug abuse.
Eadon stabbed Ms Kelly 19 times at their home at Derrycrieve, Islandeady in Castlebar.
Eadon's younger brother heard him shouting at their mother after she threw a bag of white powder into the fire.
On the night she was killed, he was also awoken by the sound of his mother's muffled screaming and found her slumped on the living room floor.
Eadon was on drugs at the time; cannabis, amphetamines and methamphetamines, and claimed this had caused a mental disorder. This claim was rejected by the State.
After deliberating for two hours and 22 minutes, the jury unanimously found him guilty of the murder of his mother.
In a victim impact statement read on their behalf, the Eadon family said their only hope was that no other family would have to endure the pain, heartache and destruction that they had suffered as a result of drug abuse.
Drugs ruin lives, they said.
Mr Justice Paul Carney said these cases were distressing for everyone concerned and sentenced Eadon to the mandatory term of life in prison.