An arrest was made in connection with a deadly cellphone deal ambush in Port St. Lucie. The incident occurred when a person was shot and killed during a meeting to purchase a cellphone. The arrest was made within 72 hours of the incident, and the investigation is ongoing. The incident highlights the dangers of online transactions and the importance of taking precautions when meeting strangers. The police are urging people to be cautious when engaging in online transactions and to take steps to protect themselves, such as meeting in public places and telling friends or family about the meeting.