A Long Island man arrested in 2012 after threatening his 73-year-old mother and police with a knife and setting off a small explosion inside his house was sentenced to three to six years in prison.

Jeffrey Anlyan was sentenced on Wednesday after pleading guilty to arson and criminal contempt.

Authorities say Anlyan had threatened to kill his mother after getting into an argument with her. They say he entered her house without permission and removed a dagger, folding knife and motor scooter keys.

He then went to his Hilltop Place home where he threatened to kill himself and responding officers. Police say he lit an open natural gas line inside the house, causing some damage.

They say he continued to threaten police before officers subdued him with a stun gun.