Complex sentence: During the standoff, officers in the Planned Parenthood building reportedly shouted to communicate with the suspect and persuaded him to surrender, leading to his arrest at 4:52 p.m. Afterward, officers began searching the building and the suspect's car for possible explosives.
Split into simpler sentences: During the standoff, officers who made it inside the Planned Parenthood building reportedly shouted to communicate with the suspect, attempting to persuade him to surrender. The gunman eventually complied, resulting in his arrest at 4:52 p.m. Afterward, officers began searching the building and the suspect's car for possible explosives.