Mike Boudet

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On June 22, 2019, in East Cleveland's South Collinwood neighborhood, police responded to a bloody scene on Chickasaw Avenue.

Two 10-year-old girls escaped their home, reporting they'd been stabbed in their sleep.

When officers got to the house, they found a third victim, a 12-year-old autistic boy who confirmed that his brother was the killer.

Eighteen-year-old Jalen Plummer was in the shower, rinsing off blood after stabbing the entire household.

In a bedroom, his grandmother Diane Madison lay dead from multiple stab wounds, and her little dog also laid nearby.

Jalen offered only a chilling explanation.

The mental health care system failed me, so I tried to kill my family.

Signs of mental illness seemed obvious when Jalen was taken to the hospital and questioned.

Nurses bandaged the deep cuts on his hands, but it was as if his voice was bound just as tightly.

His muffled words barely escaped.

He spoke in vague, detached terms, referring to his siblings as child number one and child number two.

He claimed he didn't know the names of his mother and grandmother, and said he just called them mommy or grandma.

His mother, Tania Plummer, would later tell detectives that Jalen had no official diagnosis, but his behavior had drastically changed between the ages of 12 and 15.

He'd been drinking, smoking, shutting down, and fixating on dark things.

She had just decided to get him into therapy.

But here's what Jalen's mother didn't want to say.

She remembered that his behavior had started to change around the time of another arrest.

Police already knew the name that would leave her lips.