A 22-year-old man was today arrested here for allegedly murdering his sister by mixing poison in her ice cream, police said on Thursday. They said he wanted to "live alone" and hence allegedly mixed poison in theice cream which his sister and parents consumed on August 4 night. Police said investigations revealed that the death of 16-year-old Ann Mary on August 5 at Balal in Kasaragod was a murder.

"We have recorded the arrest of her brother Albin who confessed that he had mixed poison in her ice cream," they said.