LAKEWOOD, Colo. Two people are in custody after the Jefferson County Coroners Office ruled that a 2-month-old died of methamphetamine toxicity in July. On July 26, Lakewood police responded to a home along the 500 block of Vance Street after receiving a report about an infant who was not responsive. When officers arrived, they found a 2-month-old boy in the home. He was pronounced deceased shortly after, according to the Lakewood Police Department. Detectives with the Lakewood Police Crimes Against Children Unit began an investigation. Denver 7+ Colorado News Latest Headlines | November 21, 11amThe Jefferson County Coroners Office determined that the 2-month-old, whose name was Ezra Johnson, died of methamphetamine toxicity.After a lengthy investigation, involving toxicology reports, Lakewood police announced the arrests. The infant's mother, 31-year-old Lisa Marie Johnson, and her boyfriend 33-year-old Alexander Avila are both suspects in this case, Lakewood police said. Johnson was arrested a few days ago and Avila was already in jail, according to a Lakewood police spokesperson. They are both being held for suspicion of committing first-degree murder.