Laval police ask for help from the public to find Kelly Martin Nolet aged 17.
He left the girl back home to go to work on Thursday, but never came up.
Her family is worried that he could be in a bad company. The police believe he could be Laval, Montreal or even outside the province.
Kelly has blue eyes and her hair has now colored red. She has a tattoo of AK-47 attack rifle on her right arm.
She's standing 5-2 "and weighs 120 pounds.
Anyone with information about the location of Kelly is asked to contact the police at 450-662-4636 or dial 911, mentioning the LVL file number 190222-005.