Boston Mayor: Bombing Suspects Acted Alone Boston Mayor Tom Menino says information he has indicates that the suspects in the Boston Marathon bombing acted alone. Menino tells ABC's "This Week" that he agreed with the decision to lock down Boston all day Friday, based on information officials had at the time. He tells ABC's 'This Week" that a pipe bomb was found at another location and that another person was taken into custody. The mayor did not elaborate. One suspect, Dzhokhar Tsarnaev (joh-KHAR' tsahr-NEYE'-ehv), is in the hospital in serious condition. His older brother, Tamerlan, died in a police shootout Friday.