A Pierce County jury Friday convicted two teenagers of multiple counts of armed robbery for holding up Tacoma trick-or-treaters last Halloween.
Zyion Houston-Sconiers, 18, and Treson Roberts, 17, face decades in prison when sentenced Sept. 13.
Jurors found Houston-Sconiers guilty of six counts of first-degree robbery and one count each of second-degree assault, conspiracy to commit robbery and unlawful possession of a firearm.
They also found he used a firearm in eight of the crimes, which would substantially increase his prison time. Each firearm sentencing enhancement would add five years to whatever prison term he receives for the underlying crime.
The jury found Roberts guilty of four counts of robbery and one count each of second-degree assault, conspiracy to commit robbery and unlawful possession of a firearm. Jurors found he used a firearm in six of the crimes.
Defense attorneys are likely to argue that some of the counts should be merged under the legal theory of “same criminal conduct,” which might result in the firearm sentencing enhancements being reduced.
Jurors got the case Thursday after a six-week trial and delivered their verdict about 4 p.m. at the County-City Building in downtown Tacoma.
Prosecutors alleged Houston-Sconiers and Roberts were among a group of teens who used a .22-caliber pistol to rob four groups of trick-or-treaters during a 78-minute span Oct. 31, 2012. The robberies netted candy, a devil mask and a cellphone, according to court records.
The defendants denied wrongdoing ,and their lawyers argued a police search that collected evidence used against them was unconstitutional. Superior Court Judge John Hickman allowed the evidence into the trial.
Houston-Sconiers was 17 at the time of his arrest and Roberts 16, but prosecutors decided to try them as adults.