More charges have been laid against a man accused of slashing a fellow subway rider in the neck.

20-year-old Cassim Cummings who is expected to make a court appearance on Tuesday morning is now facing 10 charges including attempted murder and aggravated assault. He was initially facing 7 charges.

Toronto Police allege Cummings got on to a southbound train at Eglinton Station on the night of February 27th and started to harass other passengers.

When a 35-year-old man from Barrie stood up to Cummings, authorities say the suspect allegedly stabbed the man.

Police now say he was involved in two other incidents back in February.

On February 1st police were called to the Finch subway station after a man alleges the suspect approached him then grabbed him by the neck and choked him.

On February 12th, police say they were called to the North York Centre after the suspect allegedly grabbed a security guard and punched him in the face repeatedly.

Cummings' mother says he suffers from schizophrenia and is bipolar.

Cummings has 19 prior convictions.