AFP — An Australian teenager accused of discussing packing a kangaroo with explosives and setting it loose on police is facing life behind bars after pleading guilty Thursday to planning a terrorist act. Sevdet Besim was arrested in Melbourne last year when he was 18 and accused of planning to run down police officers with a car, behead them and then shoot other people at an April 25 Anzac Day parade for Australia’s soldiers. He pleaded guilty to one charge of “doing an act in preparation for or planning a terrorist act”, a Supreme Court of Victoria spokeswoman told AFP, which carries a maximum sentence of life in prison. A British boy, who was 14 when accused of masterminding the plot via encrypted messages with Besim from his home in northern England, became his country’s youngest person convicted of terrorism when sentenced to five years in jail last year. Australian prosecutors have alleged Besim also had online conversations about using the kangaroo during an attack. “They have a general discussion around animals and wildlife in Australia including a suggestion that a kangaroo could be packed with C4 explosive, painted with the IS (Islamic State) symbol and set loose on police