I created this timeline of events based off of the information in the Declaration to give a better idea of Bryce's movements (let me know if I missed anything or got anything wrong. If new information is released I can add it.)
March 1 through 3rd
Jillian says she stayed at Bryce’s Apartment
March 2nd
Bryce took Noah into the bathroom (per Jillian)
Noah asked Bryce why he was hurting him (per Jillian)
March 3rd
Bryce was still in the bathroom though Jillian hasn't seen him since the day before
Jillian left Bryce’s apartment because Bryce said he had to go to Home Depot
March 4th
“Normal Heart Rate for 8 year old”, “Normal heart rate for 8 year old when running”, “How exactly sodium hydroxide works”, and “Sodium hydroxide to water” searches were done by Bryce on his cell phone
Bryce purchased long gloves, bolt cutters, 4 gallons of muriatic acid, 128 bottle of drain opener from the Home Depot in Corona.
Bryce purchased a 32 gallon trash can and 32 ounce sulfuric acid drain opener from Lowes in Corona.
9:27PM Bryce’s cell phone was in the area of Temescal Valley Road (approximately 4 miles from Bryce’s apartment) where purple latex gloves, used cleaning wipes, soiled yellow towel and part of a wooden spoon were later located by police.
10:39PM Bryce was at Target purchasing 2 bottles of drain opener.
March 5th
Bryce’s dad tries to visit Bryce and Noah but Bryce said he and Noah were sick from eating bad chicken so he wasn’t able to see them.
Between
9:29PM and
9:50PM Bryce’s cell phone was off Highway 371 in Aguanga, CA (approximately 51 miles south east of Bryce’s apartment) where the trash can, yellow towels, one blue glove, empty bottles of drain cleaner, empty cans of oven cleaner, blankets, numerous pairs of latex gloves, a plastic bag with blood residue, parts of a Ninja blender, cleaning wipes, & paper with “Noah M” written on it were later located by police.
March 8
Bryce told Jillian that Noah had been missing for 2 days. Said he had “everything under control.”
March 10
Bryce picks his daughter up from his father’s house where she had been staying for a few weeks and tells his dad Noah is missing. Bryce refused to go to the police regarding his missing son.
(Bryce's sister is trying to reach Bryce "since the beginning of March" because he missed a family event but he isn't answering his phone. At some point Jillian tells her Noah is missing. Sister tells Jillian to contact police.)
March 12
6:56PM Jillian contacts Corona PD for wellness check on Noah.
Police attempt contact with Bryce at his apartment. He refuses to open door.
March 13
Police abstain search warrant for Jillian's phone (at or around this date, document doesn't specify.) Documentation of abuse including Bryce admitting he put Noah in hot water.
Police obtain search warrant for apartment, electronics, phone and car, purple latex gloves & folded blankets located in car.
Bryce refuses to exit home but eventually does with his daughter.
Bryce invoked his Miranda Rights and asks for a lawyer (not sure exactly when, Declaration states "later")
Jillian is interviewed at the Corona Police Department. She changes her timeline of events.
Both parents are arrested for willful child cruelty.
March 16th
Corona Police search near Squaw Mt. Rd. & Temescal Valley Road and locate a purple latex glove, used cleaning wipes, a soiled yellow towel, and part of a wooden spoon.
March 18th
Second search warrant served for Bryce’s apartment and garage. The plumbing, heating and air conditioning company is called in to assist. P traps are removed from bathtubs, bathroom sinks and kitchen sink. Assisting plumber said p traps in the bathtubs (plural) were cleaner than regular p traps.
March 28th
Bryce charged with first-degree murder and a special circumstance allegation of torture.
https://tribktla.files.wordpress.com/2019/03/bryce-mcintosh-rif1901410-arrest-dec.pdf