Ninteen-year-old Joaquin Rico turned himself in Friday, two days after 24-year-old alleged accomplice Joseph Espinoza turned himself in.
A surveillance video released last week by police in Arvada, Colorado, shows two unarmed men inside the convenience store. They stole an undisclosed amount of cash and cigarettes in the May 16 robbery.
One man wore a green thong and the other wore blue. Each thong barely covered the man's nose, mouth and chin and left the rest of his face exposed. One also wore a pink backpack in which he stuffed the stolen items.
