On the laptop on Shi Su's lap, she was watching the surveillance footage from Six Blessings Building before the fire. She had already watched it countless times during her stay in the hospital over the past few days, but there were some blind spots in the footage she hadn't examined closely.
The surveillance footage she initially received was given to her by Shi Lingkang. She was worried he might have edited the clips or tampered with them, so she asked Lu Zhao to help acquire a complete version.
The total time of the two surveillance videos differed by about ten minutes.
The copy given to her by Shi Lingkang indeed had a few very short sections removed. One instance was the day before the incident when Six Blessings Building suddenly seemed to lose power. There was a brief period of darkness in the footage, but everything returned to normal after the lights came back on. The following few short clips totaled only a few minutes and were also blacked out in the surveillance video.
