A man who is accused of slashing a woman aboard a BART train in San Francisco in an unprovoked attack was charged with attempted murder on Tuesday, according to San Francisco District Attorney Brooke Jenkins’ office.

SAN FRANCISCO — A man suspected of slashing a woman with a knife on a BART train earlier this month has been charged by prosecutors with one count of attempted murder, authorities said Tuesday.

A man accused of stabbing a woman on board a BART train in San Francisco earlier this month is expected to be appear in court on multiple charges Tuesday, including attempted murder.

A man arrested in connection with an unprovoked stabbing on a moving BART train had long been estranged from his family as he cycled in and out of jail for committing crimes, and he clearly needed help,