A stuffed animal and flowers sit Wednesday, April 2, 2014, along the walkway outside the home in McCandless, Pa., where two children were found unresponsive in a bathtub on Tuesday. The mother, Laurel Michelle Schlemmer, was charged with drowning her 3-year-old son and leaving his 6-year-old brother in critical condition after she allegedly pushed the boys underwater in a bathtub, then sat on them. Schlemmer, 40, was jailed without bond after arraignment early Wednesday on charges including criminal homicide, aggravated assault and child endangerment.

MCCANDLESS — A Western Pennsylvania woman accused of drowning one of her young sons and critically injuring another in a bathtub backed into the boys with her van 10 months ago, her pastor said.

And court records show she left a child unattended in a hot car in 2009.

North Park Church Pastor Dan Hendley told The Associated Press on Wednesday the van incident happened in the driveway of the boys’ grandparents in a town near McCandless, where Laurel Michelle Schlemmer had been living with her sons. No charges were filed.

“There was no concern that there was anything but a terrible accident that occurred in that situation,” Hendley said.

Schlemmer, a 40-year-old stay-at-home mom, was jailed without bond Wednesday on charges including criminal homicide and attempted homicide as prosecutors began reviewing another episode involving her and her children. Prosecutors would not discuss what they were looking into.

Schlemmer’s 3-year-old son Luke was pronounced dead Tuesday morning, while 6-year-old Daniel was in critical condition at the Children’s Hospital of Pittsburgh. Schlemmer told detectives she thought she could be a better mother to a third son, the oldest, “if the other two boys weren’t around, and they would be better off in heaven,” a police complaint said.

Hendley said the family seemed to have bounced back well from the van accident, which he said caused internal injuries to Daniel and left Luke unable to walk for a time.

“They seemed to be doing well from the distance from which I observed them,” he said.

The pastor said there were concerns about Schlemmer’s mental state as a result of that trauma, not because her friends or family had any suspicions about the van incident.

“What was shared with me is she was in the van and the boys were behind her and she didn’t see them,” he said. “She thought the boys had run inside and, instead, they were in back of the van.”

In another incident, Schlemmer received a citation for leaving a toddler unattended in a parked car in 2009 in nearby Ross Township, court records show. The interior of the car was 112 degrees when officers arrived, police said.

The child wasn’t injured and Schlemmer paid a small fine, court records show. They didn’t say which child was in the car.

In an interview with detectives, Schlemmer said she tried to drown both Luke and Daniel after her 7-year-old son left for school Tuesday. She put the older boy on his school bus that morning and then told the younger boys to take off their pajamas and get into the bathtub, according to the police complaint.

“Schlemmer said after the boys got into the tub, she got into the tub ‘fully clothed,’ and ‘crazy voices’ were telling her to push the boys down into the water,” the complaint said.