Published: Apr 07, 2010 9:53 PM EDT

TAMPA, Fla. - A mother who allegedly gave her teenage son drugs that contributed to his fatal overdose pleaded guilty to a drug distribution charge. Linda Courtright pleaded guilty in federal court Wednesday.

The 36-year-old Courtright faces 20 years to life in federal prison in the death of 15-year-old Nicholas Block. Nicholas was found dead in June 2009 in a North Port motel room. Police said they found Courtright unconscious in the room, along with three of her other children.

An autopsy determined Nicholas died from intoxication with oxycodone, alprazolam and cocaine. Assistant U.S. Attorney Matthew Perry says he may also ask that Courtright be required to pay restitution to the state of Florida, which paid the $5,000 cost of her son's funeral.