Garland's Colten Moore, 18, Murdered a 7-Eleven Clerk in Cold Blood, Police Say

Google "Colten Moore" and you'll find that there are two young North Texas men of that name currently making headlines.

One, 24, from Krum , just scored an inspiring snowmobiling victory at the X Games, one year after brother Caleb was killed trying to do the same.

The other, 18, from Garland, is accused of cold-bloodedly gunning down two convenience store clerks in the span of a week.

That Moore was arrested Wednesday night and charged with capital murder in the shooting death of 7-Eleven clerk Yosef Tulu.

The reason, according to court documents, was simply that he wanted to shoot someone with his dad's .22-caliber rifle. He'd been saying this for more than a year, a friend told police. Surveillance video shows Moore, wearing a mask, walking into the 7-Eleven around 3 a.m. Tuesday.

After Tulu put cash and multiple packs of cigarettes into a bag, Moore motioned for him to lay on the floor. Then, police say, Moore shot Tulu twice, execution-style.

During questioning by police, Moore admitted to the second shooting, which occurred on January 16 at Homeboys convenience on Firewheel Parkway, across the street from the 7-Eleven. The clerk in that case received two gunshot wounds while walking to his car but is expected to recover.

Last night, hundreds of mourners turned out for a candlelight vigil honoring Tulu.

The 31-year-old was studying to be a nurse and planned to return to his native Ethiopia in a few months to marry his fiancee and bring her back to the States.

Send your story tips to the author, Eric Nicholson.