One of the four teens charged with microwaving a cat was denied bail Wednesday and will remain in custody until his next court appearance.

The 15-year-old had been out on bail awaiting his sentence for being convicted of arson when he and three other friends allegedly broke into a Camrose house twice and killed the family's pet in the microwave.

Wearing a black ski jacket, the boy sat attentively during his brief 10 minute appearance.

Crown prosecutor Trent Wilson requested the boy undergo a new psychological assessment in light of the new charges.

Provincial court judge E.D. Reimer said the teen will not go for assessment.

The boy, who cannot be named under the Youth Criminal Justice Act, will remain in custody until he enters a plea on Jan. 17.

The other three boys, aged 13 to 15, have been released on bail until their next court appearance on Feb. 7.

The teens are facing charges of unlawfully killing an animal; unlawfully causing pain or suffering to an animal; break, enter and theft; mischief; and possession of stolen property.

With files from Scott Roberts