welcome to weekends with alex witt. we have breaking news to share from phoenix this morning. a sense of relief there after police make an arrest in the string of seemingly random freeway shootings. the weapon and the man who we believe that was responsible for what started this spree in arizona is in custody. 21-year-old leslie allen merritt, jr., was arrested in a phoenix suburb friday night. they have linked his gun to four of the 11 cars hit. they say he tried to pawn the guns used in the shootings. we knew something big was going down. i mean, as we were passing coming in, he they had already tooken him away but the military cops were still here. and we had asked them i was like, he must have been wanted and the cop is just like, yes. i m like that. i m glad if it is him that it s over. that that s that s for sure. well, the four shootings police say are linked to merritt include an attack on a tour bus and an suv and all on i-10. he faces criminal endang